20940829

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{359}}^1\times {\mathrm{641}}^1$

素因数の和:1020

約数の個数: 16

約数和(自身を含む): 25885440

約数和(自身を除く): 4944611

約数列:

[1, 7, 13, 91, 359, 641, 2513, 4487, 4667, 8333, 32669, 58331, 230119, 1610833, 2991547, 20940829]

約数ペア:

[(1, 20940829), (7, 2991547), (13, 1610833), (91, 230119), (359, 58331), (641, 32669), (2513, 8333), (4487, 4667)]