9870212

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{20393}}^1$

素因数の和:20419

約数の個数: 18

約数和(自身を含む): 18986814

約数和(自身を除く): 9116602

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 20393, 40786, 81572, 224323, 448646, 897292, 2467553, 4935106, 9870212]

約数ペア:

[(1, 9870212), (2, 4935106), (4, 2467553), (11, 897292), (22, 448646), (44, 224323), (121, 81572), (242, 40786), (484, 20393)]