20782238

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{1123}}^1$

素因数の和:1631

約数の個数: 16

約数和(自身を含む): 32910720

約数和(自身を除く): 12128482

約数列:

[1, 2, 19, 38, 487, 974, 1123, 2246, 9253, 18506, 21337, 42674, 546901, 1093802, 10391119, 20782238]

約数ペア:

[(1, 20782238), (2, 10391119), (19, 1093802), (38, 546901), (487, 42674), (974, 21337), (1123, 18506), (2246, 9253)]