21102950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:138

約数の個数: 96

約数和(自身を含む): 47327328

約数和(自身を除く): 26224378

約数列:

[1, 2, 5, 10, 11, 17, 22, 25, 34, 37, 50, 55, 61, 74, 85, 110, 122, 170, 185, 187, 275, 305, 370, 374, 407, 425, 550, 610, 629, 671, 814, 850, 925, 935, 1037, 1258, 1342, 1525, 1850, 1870, 2035, 2074, 2257, 3050, 3145, 3355, 4070, 4514, 4675, 5185, 6290, 6710, 6919, 9350, 10175, 10370, 11285, 11407, 13838, 15725, 16775, 20350, 22570, 22814, 24827, 25925, 31450, 33550, 34595, 38369, 49654, 51850, 56425, 57035, 69190, 76738, 112850, 114070, 124135, 172975, 191845, 248270, 285175, 345950, 383690, 422059, 570350, 620675, 844118, 959225, 1241350, 1918450, 2110295, 4220590, 10551475, 21102950]

約数ペア:

[(1, 21102950), (2, 10551475), (5, 4220590), (10, 2110295), (11, 1918450), (17, 1241350), (22, 959225), (25, 844118), (34, 620675), (37, 570350), (50, 422059), (55, 383690), (61, 345950), (74, 285175), (85, 248270), (110, 191845), (122, 172975), (170, 124135), (185, 114070), (187, 112850), (275, 76738), (305, 69190), (370, 57035), (374, 56425), (407, 51850), (425, 49654), (550, 38369), (610, 34595), (629, 33550), (671, 31450), (814, 25925), (850, 24827), (925, 22814), (935, 22570), (1037, 20350), (1258, 16775), (1342, 15725), (1525, 13838), (1850, 11407), (1870, 11285), (2035, 10370), (2074, 10175), (2257, 9350), (3050, 6919), (3145, 6710), (3355, 6290), (4070, 5185), (4514, 4675)]