20465263

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{13229}}^1$

素因数の和:13266

約数の個数: 16

約数和(自身を含む): 26671680

約数和(自身を除く): 6206417

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 13229, 92603, 171977, 224893, 1203839, 1574251, 2923609, 20465263]

約数ペア:

[(1, 20465263), (7, 2923609), (13, 1574251), (17, 1203839), (91, 224893), (119, 171977), (221, 92603), (1547, 13229)]