21805198

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{2381}}^1$

素因数の和:2643

約数の個数: 16

約数和(自身を含む): 34586640

約数和(自身を除く): 12781442

約数列:

[1, 2, 19, 38, 241, 482, 2381, 4579, 4762, 9158, 45239, 90478, 573821, 1147642, 10902599, 21805198]

約数ペア:

[(1, 21805198), (2, 10902599), (19, 1147642), (38, 573821), (241, 90478), (482, 45239), (2381, 9158), (4579, 4762)]