21421920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3433}}^1$

素因数の和:3464

約数の個数: 96

約数和(自身を含む): 72690912

約数和(自身を除く): 51268992

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 195, 208, 240, 260, 312, 390, 416, 480, 520, 624, 780, 1040, 1248, 1560, 2080, 3120, 3433, 6240, 6866, 10299, 13732, 17165, 20598, 27464, 34330, 41196, 44629, 51495, 54928, 68660, 82392, 89258, 102990, 109856, 133887, 137320, 164784, 178516, 205980, 223145, 267774, 274640, 329568, 357032, 411960, 446290, 535548, 549280, 669435, 714064, 823920, 892580, 1071096, 1338870, 1428128, 1647840, 1785160, 2142192, 2677740, 3570320, 4284384, 5355480, 7140640, 10710960, 21421920]

約数ペア:

[(1, 21421920), (2, 10710960), (3, 7140640), (4, 5355480), (5, 4284384), (6, 3570320), (8, 2677740), (10, 2142192), (12, 1785160), (13, 1647840), (15, 1428128), (16, 1338870), (20, 1071096), (24, 892580), (26, 823920), (30, 714064), (32, 669435), (39, 549280), (40, 535548), (48, 446290), (52, 411960), (60, 357032), (65, 329568), (78, 274640), (80, 267774), (96, 223145), (104, 205980), (120, 178516), (130, 164784), (156, 137320), (160, 133887), (195, 109856), (208, 102990), (240, 89258), (260, 82392), (312, 68660), (390, 54928), (416, 51495), (480, 44629), (520, 41196), (624, 34330), (780, 27464), (1040, 20598), (1248, 17165), (1560, 13732), (2080, 10299), (3120, 6866), (3433, 6240)]