20391631

素因数分解:

${\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:370

約数の個数: 16

約数和(自身を含む): 22544704

約数和(自身を除く): 2153073

約数列:

[1, 13, 97, 103, 157, 1261, 1339, 2041, 9991, 15229, 16171, 129883, 197977, 210223, 1568587, 20391631]

約数ペア:

[(1, 20391631), (13, 1568587), (97, 210223), (103, 197977), (157, 129883), (1261, 16171), (1339, 15229), (2041, 9991)]