20507513

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{641}}^1$

素因数の和:784

約数の個数: 16

約数和(自身を含む): 23296896

約数和(自身を除く): 2789383

約数列:

[1, 13, 23, 107, 299, 641, 1391, 2461, 8333, 14743, 31993, 68587, 191659, 891631, 1577501, 20507513]

約数ペア:

[(1, 20507513), (13, 1577501), (23, 891631), (107, 191659), (299, 68587), (641, 31993), (1391, 14743), (2461, 8333)]