21129235920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2257397}}^1$

素因数の和:2257429

約数の個数: 120

約数和(自身を含む): 76417437096

約数和(自身を除く): 55288201176

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2340, 3120, 4680, 9360, 2257397, 4514794, 6772191, 9029588, 11286985, 13544382, 18059176, 20316573, 22573970, 27088764, 29346161, 33860955, 36118352, 40633146, 45147940, 54177528, 58692322, 67721910, 81266292, 88038483, 90295880, 101582865, 108355056, 117384644, 135443820, 146730805, 162532584, 176076966, 180591760, 203165730, 234769288, 264115449, 270887640, 293461610, 325065168, 352153932, 406331460, 440192415, 469538576, 528230898, 541775280, 586923220, 704307864, 812662920, 880384830, 1056461796, 1173846440, 1320577245, 1408615728, 1625325840, 1760769660, 2112923592, 2347692880, 2641154490, 3521539320, 4225847184, 5282308980, 7043078640, 10564617960, 21129235920]

約数ペア:

[(1, 21129235920), (2, 10564617960), (3, 7043078640), (4, 5282308980), (5, 4225847184), (6, 3521539320), (8, 2641154490), (9, 2347692880), (10, 2112923592), (12, 1760769660), (13, 1625325840), (15, 1408615728), (16, 1320577245), (18, 1173846440), (20, 1056461796), (24, 880384830), (26, 812662920), (30, 704307864), (36, 586923220), (39, 541775280), (40, 528230898), (45, 469538576), (48, 440192415), (52, 406331460), (60, 352153932), (65, 325065168), (72, 293461610), (78, 270887640), (80, 264115449), (90, 234769288), (104, 203165730), (117, 180591760), (120, 176076966), (130, 162532584), (144, 146730805), (156, 135443820), (180, 117384644), (195, 108355056), (208, 101582865), (234, 90295880), (240, 88038483), (260, 81266292), (312, 67721910), (360, 58692322), (390, 54177528), (468, 45147940), (520, 40633146), (585, 36118352), (624, 33860955), (720, 29346161), (780, 27088764), (936, 22573970), (1040, 20316573), (1170, 18059176), (1560, 13544382), (1872, 11286985), (2340, 9029588), (3120, 6772191), (4680, 4514794), (9360, 2257397)]