128828791

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{202243}}^1$

素因数の和:202270

約数の個数: 12

約数和(自身を含む): 161390712

約数和(自身を除く): 32561921

約数列:

[1, 7, 13, 49, 91, 637, 202243, 1415701, 2629159, 9909907, 18404113, 128828791]

約数ペア:

[(1, 128828791), (7, 18404113), (13, 9909907), (49, 2629159), (91, 1415701), (637, 202243)]