21389521356

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{127}}^1\times {\mathrm{307}}^1\times {\mathrm{311}}^1$

素因数の和:769

約数の個数: 216

約数和(自身を含む): 63801593856

約数和(自身を除く): 42412072500

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 127, 147, 196, 252, 254, 294, 307, 311, 381, 441, 508, 588, 614, 622, 762, 882, 889, 921, 933, 1143, 1228, 1244, 1524, 1764, 1778, 1842, 1866, 2149, 2177, 2286, 2667, 2763, 2799, 3556, 3684, 3732, 4298, 4354, 4572, 5334, 5526, 5598, 6223, 6447, 6531, 8001, 8596, 8708, 10668, 11052, 11196, 12446, 12894, 13062, 15043, 15239, 16002, 18669, 19341, 19593, 24892, 25788, 26124, 30086, 30478, 32004, 37338, 38682, 38989, 39186, 39497, 45129, 45717, 56007, 60172, 60956, 74676, 77364, 77978, 78372, 78994, 90258, 91434, 95477, 112014, 116967, 118491, 135387, 137151, 155956, 157988, 180516, 182868, 190954, 224028, 233934, 236982, 270774, 272923, 274302, 276479, 286431, 350901, 355473, 381908, 467868, 473964, 541548, 545846, 548604, 552958, 572862, 668339, 701802, 710946, 818769, 829437, 859293, 1091692, 1105916, 1145724, 1336678, 1403604, 1421892, 1637538, 1658874, 1718586, 1910461, 1935353, 2005017, 2456307, 2488311, 2673356, 3275076, 3317748, 3437172, 3820922, 3870706, 4010034, 4678373, 4912614, 4976622, 5731383, 5806059, 6015051, 7641844, 7741412, 8020068, 9356746, 9825228, 9953244, 11462766, 11612118, 12030102, 12125579, 14035119, 17194149, 17418177, 18713492, 22925532, 23224236, 24060204, 24251158, 28070238, 34388298, 34836354, 36376737, 42105357, 48502316, 56140476, 68776596, 69672708, 72753474, 84210714, 84879053, 109130211, 145506948, 168421428, 169758106, 218260422, 254637159, 339516212, 436520844, 509274318, 594153371, 763911477, 1018548636, 1188306742, 1527822954, 1782460113, 2376613484, 3055645908, 3564920226, 5347380339, 7129840452, 10694760678, 21389521356]

約数ペア:

[(1, 21389521356), (2, 10694760678), (3, 7129840452), (4, 5347380339), (6, 3564920226), (7, 3055645908), (9, 2376613484), (12, 1782460113), (14, 1527822954), (18, 1188306742), (21, 1018548636), (28, 763911477), (36, 594153371), (42, 509274318), (49, 436520844), (63, 339516212), (84, 254637159), (98, 218260422), (126, 169758106), (127, 168421428), (147, 145506948), (196, 109130211), (252, 84879053), (254, 84210714), (294, 72753474), (307, 69672708), (311, 68776596), (381, 56140476), (441, 48502316), (508, 42105357), (588, 36376737), (614, 34836354), (622, 34388298), (762, 28070238), (882, 24251158), (889, 24060204), (921, 23224236), (933, 22925532), (1143, 18713492), (1228, 17418177), (1244, 17194149), (1524, 14035119), (1764, 12125579), (1778, 12030102), (1842, 11612118), (1866, 11462766), (2149, 9953244), (2177, 9825228), (2286, 9356746), (2667, 8020068), (2763, 7741412), (2799, 7641844), (3556, 6015051), (3684, 5806059), (3732, 5731383), (4298, 4976622), (4354, 4912614), (4572, 4678373), (5334, 4010034), (5526, 3870706), (5598, 3820922), (6223, 3437172), (6447, 3317748), (6531, 3275076), (8001, 2673356), (8596, 2488311), (8708, 2456307), (10668, 2005017), (11052, 1935353), (11196, 1910461), (12446, 1718586), (12894, 1658874), (13062, 1637538), (15043, 1421892), (15239, 1403604), (16002, 1336678), (18669, 1145724), (19341, 1105916), (19593, 1091692), (24892, 859293), (25788, 829437), (26124, 818769), (30086, 710946), (30478, 701802), (32004, 668339), (37338, 572862), (38682, 552958), (38989, 548604), (39186, 545846), (39497, 541548), (45129, 473964), (45717, 467868), (56007, 381908), (60172, 355473), (60956, 350901), (74676, 286431), (77364, 276479), (77978, 274302), (78372, 272923), (78994, 270774), (90258, 236982), (91434, 233934), (95477, 224028), (112014, 190954), (116967, 182868), (118491, 180516), (135387, 157988), (137151, 155956)]