21247746

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{272407}}^1$

素因数の和:272425

約数の個数: 16

約数和(自身を含む): 45764544

約数和(自身を除く): 24516798

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 272407, 544814, 817221, 1634442, 3541291, 7082582, 10623873, 21247746]

約数ペア:

[(1, 21247746), (2, 10623873), (3, 7082582), (6, 3541291), (13, 1634442), (26, 817221), (39, 544814), (78, 272407)]