21000921898

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{4931}}^1\times {\mathrm{17599}}^1$

素因数の和:22554

約数の個数: 24

約数和(自身を含む): 34634476800

約数和(自身を除く): 13633554902

約数列:

[1, 2, 11, 22, 121, 242, 4931, 9862, 17599, 35198, 54241, 108482, 193589, 387178, 596651, 1193302, 2129479, 4258958, 86780669, 173561338, 954587359, 1909174718, 10500460949, 21000921898]

約数ペア:

[(1, 21000921898), (2, 10500460949), (11, 1909174718), (22, 954587359), (121, 173561338), (242, 86780669), (4931, 4258958), (9862, 2129479), (17599, 1193302), (35198, 596651), (54241, 387178), (108482, 193589)]