21420960

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4057}}^1$

素因数の和:4086

約数の個数: 96

約数和(自身を含む): 73628352

約数和(自身を除く): 52207392

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 96, 110, 120, 132, 160, 165, 176, 220, 240, 264, 330, 352, 440, 480, 528, 660, 880, 1056, 1320, 1760, 2640, 4057, 5280, 8114, 12171, 16228, 20285, 24342, 32456, 40570, 44627, 48684, 60855, 64912, 81140, 89254, 97368, 121710, 129824, 133881, 162280, 178508, 194736, 223135, 243420, 267762, 324560, 357016, 389472, 446270, 486840, 535524, 649120, 669405, 714032, 892540, 973680, 1071048, 1338810, 1428064, 1785080, 1947360, 2142096, 2677620, 3570160, 4284192, 5355240, 7140320, 10710480, 21420960]

約数ペア:

[(1, 21420960), (2, 10710480), (3, 7140320), (4, 5355240), (5, 4284192), (6, 3570160), (8, 2677620), (10, 2142096), (11, 1947360), (12, 1785080), (15, 1428064), (16, 1338810), (20, 1071048), (22, 973680), (24, 892540), (30, 714032), (32, 669405), (33, 649120), (40, 535524), (44, 486840), (48, 446270), (55, 389472), (60, 357016), (66, 324560), (80, 267762), (88, 243420), (96, 223135), (110, 194736), (120, 178508), (132, 162280), (160, 133881), (165, 129824), (176, 121710), (220, 97368), (240, 89254), (264, 81140), (330, 64912), (352, 60855), (440, 48684), (480, 44627), (528, 40570), (660, 32456), (880, 24342), (1056, 20285), (1320, 16228), (1760, 12171), (2640, 8114), (4057, 5280)]