2019910991

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{151157}}^1$

素因数の和:151270

約数の個数: 16

約数和(自身を含む): 2437876224

約数和(自身を除く): 417965233

約数列:

[1, 7, 23, 83, 161, 581, 1909, 13363, 151157, 1058099, 3476611, 12546031, 24336277, 87822217, 288558713, 2019910991]

約数ペア:

[(1, 2019910991), (7, 288558713), (23, 87822217), (83, 24336277), (161, 12546031), (581, 3476611), (1909, 1058099), (13363, 151157)]