21013608

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:247

約数の個数: 128

約数和(自身を含む): 66769920

約数和(自身を除く): 45756312

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 42, 44, 56, 66, 77, 83, 84, 88, 132, 137, 154, 166, 168, 231, 249, 264, 274, 308, 332, 411, 462, 498, 548, 581, 616, 664, 822, 913, 924, 959, 996, 1096, 1162, 1507, 1644, 1743, 1826, 1848, 1918, 1992, 2324, 2739, 2877, 3014, 3288, 3486, 3652, 3836, 4521, 4648, 5478, 5754, 6028, 6391, 6972, 7304, 7672, 9042, 10549, 10956, 11371, 11508, 12056, 12782, 13944, 18084, 19173, 21098, 21912, 22742, 23016, 25564, 31647, 34113, 36168, 38346, 42196, 45484, 51128, 63294, 68226, 76692, 79597, 84392, 90968, 125081, 126588, 136452, 153384, 159194, 238791, 250162, 253176, 272904, 318388, 375243, 477582, 500324, 636776, 750486, 875567, 955164, 1000648, 1500972, 1751134, 1910328, 2626701, 3001944, 3502268, 5253402, 7004536, 10506804, 21013608]

約数ペア:

[(1, 21013608), (2, 10506804), (3, 7004536), (4, 5253402), (6, 3502268), (7, 3001944), (8, 2626701), (11, 1910328), (12, 1751134), (14, 1500972), (21, 1000648), (22, 955164), (24, 875567), (28, 750486), (33, 636776), (42, 500324), (44, 477582), (56, 375243), (66, 318388), (77, 272904), (83, 253176), (84, 250162), (88, 238791), (132, 159194), (137, 153384), (154, 136452), (166, 126588), (168, 125081), (231, 90968), (249, 84392), (264, 79597), (274, 76692), (308, 68226), (332, 63294), (411, 51128), (462, 45484), (498, 42196), (548, 38346), (581, 36168), (616, 34113), (664, 31647), (822, 25564), (913, 23016), (924, 22742), (959, 21912), (996, 21098), (1096, 19173), (1162, 18084), (1507, 13944), (1644, 12782), (1743, 12056), (1826, 11508), (1848, 11371), (1918, 10956), (1992, 10549), (2324, 9042), (2739, 7672), (2877, 7304), (3014, 6972), (3288, 6391), (3486, 6028), (3652, 5754), (3836, 5478), (4521, 4648)]