20091701

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{353}}^1$

素因数の和:580

約数の個数: 16

約数和(自身を含む): 23652864

約数和(自身を除く): 3561163

約数列:

[1, 7, 47, 173, 329, 353, 1211, 2471, 8131, 16591, 56917, 61069, 116137, 427483, 2870243, 20091701]

約数ペア:

[(1, 20091701), (7, 2870243), (47, 427483), (173, 116137), (329, 61069), (353, 56917), (1211, 16591), (2471, 8131)]