21355950

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^2$

素因数の和:119

約数の個数: 144

約数和(自身を含む): 67602816

約数和(自身を除く): 46246866

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 25, 30, 33, 35, 42, 43, 50, 55, 66, 70, 75, 77, 86, 105, 110, 129, 150, 154, 165, 175, 210, 215, 231, 258, 275, 301, 330, 350, 385, 430, 462, 473, 525, 550, 602, 645, 770, 825, 903, 946, 1050, 1075, 1155, 1290, 1419, 1505, 1650, 1806, 1849, 1925, 2150, 2310, 2365, 2838, 3010, 3225, 3311, 3698, 3850, 4515, 4730, 5547, 5775, 6450, 6622, 7095, 7525, 9030, 9245, 9933, 11094, 11550, 11825, 12943, 14190, 15050, 16555, 18490, 19866, 20339, 22575, 23650, 25886, 27735, 33110, 35475, 38829, 40678, 45150, 46225, 49665, 55470, 61017, 64715, 70950, 77658, 82775, 92450, 99330, 101695, 122034, 129430, 138675, 142373, 165550, 194145, 203390, 248325, 277350, 284746, 305085, 323575, 388290, 427119, 496650, 508475, 610170, 647150, 711865, 854238, 970725, 1016950, 1423730, 1525425, 1941450, 2135595, 3050850, 3559325, 4271190, 7118650, 10677975, 21355950]

約数ペア:

[(1, 21355950), (2, 10677975), (3, 7118650), (5, 4271190), (6, 3559325), (7, 3050850), (10, 2135595), (11, 1941450), (14, 1525425), (15, 1423730), (21, 1016950), (22, 970725), (25, 854238), (30, 711865), (33, 647150), (35, 610170), (42, 508475), (43, 496650), (50, 427119), (55, 388290), (66, 323575), (70, 305085), (75, 284746), (77, 277350), (86, 248325), (105, 203390), (110, 194145), (129, 165550), (150, 142373), (154, 138675), (165, 129430), (175, 122034), (210, 101695), (215, 99330), (231, 92450), (258, 82775), (275, 77658), (301, 70950), (330, 64715), (350, 61017), (385, 55470), (430, 49665), (462, 46225), (473, 45150), (525, 40678), (550, 38829), (602, 35475), (645, 33110), (770, 27735), (825, 25886), (903, 23650), (946, 22575), (1050, 20339), (1075, 19866), (1155, 18490), (1290, 16555), (1419, 15050), (1505, 14190), (1650, 12943), (1806, 11825), (1849, 11550), (1925, 11094), (2150, 9933), (2310, 9245), (2365, 9030), (2838, 7525), (3010, 7095), (3225, 6622), (3311, 6450), (3698, 5775), (3850, 5547), (4515, 4730)]