21105888090

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{161323}}^1$

素因数の和:161436

約数の個数: 96

約数和(自身を含む): 59586632640

約数和(自身を除く): 38480744550

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 89, 98, 105, 147, 178, 210, 245, 267, 294, 445, 490, 534, 623, 735, 890, 1246, 1335, 1470, 1869, 2670, 3115, 3738, 4361, 6230, 8722, 9345, 13083, 18690, 21805, 26166, 43610, 65415, 130830, 161323, 322646, 483969, 806615, 967938, 1129261, 1613230, 2258522, 2419845, 3387783, 4839690, 5646305, 6775566, 7904827, 11292610, 14357747, 15809654, 16938915, 23714481, 28715494, 33877830, 39524135, 43073241, 47428962, 71788735, 79048270, 86146482, 100504229, 118572405, 143577470, 201008458, 215366205, 237144810, 301512687, 430732410, 502521145, 603025374, 703529603, 1005042290, 1407059206, 1507563435, 2110588809, 3015126870, 3517648015, 4221177618, 7035296030, 10552944045, 21105888090]

約数ペア:

[(1, 21105888090), (2, 10552944045), (3, 7035296030), (5, 4221177618), (6, 3517648015), (7, 3015126870), (10, 2110588809), (14, 1507563435), (15, 1407059206), (21, 1005042290), (30, 703529603), (35, 603025374), (42, 502521145), (49, 430732410), (70, 301512687), (89, 237144810), (98, 215366205), (105, 201008458), (147, 143577470), (178, 118572405), (210, 100504229), (245, 86146482), (267, 79048270), (294, 71788735), (445, 47428962), (490, 43073241), (534, 39524135), (623, 33877830), (735, 28715494), (890, 23714481), (1246, 16938915), (1335, 15809654), (1470, 14357747), (1869, 11292610), (2670, 7904827), (3115, 6775566), (3738, 5646305), (4361, 4839690), (6230, 3387783), (8722, 2419845), (9345, 2258522), (13083, 1613230), (18690, 1129261), (21805, 967938), (26166, 806615), (43610, 483969), (65415, 322646), (130830, 161323)]