19904894

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{6311}}^1$

素因数の和:6415

約数の個数: 16

約数和(自身を含む): 31812480

約数和(自身を除く): 11907586

約数列:

[1, 2, 19, 38, 83, 166, 1577, 3154, 6311, 12622, 119909, 239818, 523813, 1047626, 9952447, 19904894]

約数ペア:

[(1, 19904894), (2, 9952447), (19, 1047626), (38, 523813), (83, 239818), (166, 119909), (1577, 12622), (3154, 6311)]