20265791

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2819}}^1$

素因数の和:2918

約数の個数: 16

約数和(自身を含む): 25267200

約数和(自身を除く): 5001409

約数列:

[1, 7, 13, 79, 91, 553, 1027, 2819, 7189, 19733, 36647, 222701, 256529, 1558907, 2895113, 20265791]

約数ペア:

[(1, 20265791), (7, 2895113), (13, 1558907), (79, 256529), (91, 222701), (553, 36647), (1027, 19733), (2819, 7189)]