81931109

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{11959}}^1$

素因数の和:12020

約数の個数: 16

約数和(自身を含む): 96445440

約数和(自身を除く): 14514331

約数列:

[1, 13, 17, 31, 221, 403, 527, 6851, 11959, 155467, 203303, 370729, 2642939, 4819477, 6302393, 81931109]

約数ペア:

[(1, 81931109), (13, 6302393), (17, 4819477), (31, 2642939), (221, 370729), (403, 203303), (527, 155467), (6851, 11959)]