21757010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17981}}^1$

素因数の和:18010

約数の個数: 24

約数和(自身を含む): 43048908

約数和(自身を除く): 21291898

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 17981, 35962, 89905, 179810, 197791, 395582, 988955, 1977910, 2175701, 4351402, 10878505, 21757010]

約数ペア:

[(1, 21757010), (2, 10878505), (5, 4351402), (10, 2175701), (11, 1977910), (22, 988955), (55, 395582), (110, 197791), (121, 179810), (242, 89905), (605, 35962), (1210, 17981)]