21150231700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{18679}}^1$

素因数の和:18786

約数の個数: 108

約数和(自身を含む): 50442500640

約数和(自身を除く): 29292268940

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 67, 100, 130, 134, 169, 260, 268, 325, 335, 338, 650, 670, 676, 845, 871, 1300, 1340, 1675, 1690, 1742, 3350, 3380, 3484, 4225, 4355, 6700, 8450, 8710, 11323, 16900, 17420, 18679, 21775, 22646, 37358, 43550, 45292, 56615, 74716, 87100, 93395, 113230, 186790, 226460, 242827, 283075, 373580, 466975, 485654, 566150, 933950, 971308, 1132300, 1214135, 1251493, 1867900, 2428270, 2502986, 3156751, 4856540, 5005972, 6070675, 6257465, 6313502, 12141350, 12514930, 12627004, 15783755, 16269409, 24282700, 25029860, 31287325, 31567510, 32538818, 62574650, 63135020, 65077636, 78918775, 81347045, 125149300, 157837550, 162694090, 211502317, 315675100, 325388180, 406735225, 423004634, 813470450, 846009268, 1057511585, 1626940900, 2115023170, 4230046340, 5287557925, 10575115850, 21150231700]

約数ペア:

[(1, 21150231700), (2, 10575115850), (4, 5287557925), (5, 4230046340), (10, 2115023170), (13, 1626940900), (20, 1057511585), (25, 846009268), (26, 813470450), (50, 423004634), (52, 406735225), (65, 325388180), (67, 315675100), (100, 211502317), (130, 162694090), (134, 157837550), (169, 125149300), (260, 81347045), (268, 78918775), (325, 65077636), (335, 63135020), (338, 62574650), (650, 32538818), (670, 31567510), (676, 31287325), (845, 25029860), (871, 24282700), (1300, 16269409), (1340, 15783755), (1675, 12627004), (1690, 12514930), (1742, 12141350), (3350, 6313502), (3380, 6257465), (3484, 6070675), (4225, 5005972), (4355, 4856540), (6700, 3156751), (8450, 2502986), (8710, 2428270), (11323, 1867900), (16900, 1251493), (17420, 1214135), (18679, 1132300), (21775, 971308), (22646, 933950), (37358, 566150), (43550, 485654), (45292, 466975), (56615, 373580), (74716, 283075), (87100, 242827), (93395, 226460), (113230, 186790)]