20440593

素因数分解:

$3^4\times {\mathrm{409}}^1\times {\mathrm{617}}^1$

素因数の和:1038

約数の個数: 20

約数和(自身を含む): 30658980

約数和(自身を除く): 10218387

約数列:

[1, 3, 9, 27, 81, 409, 617, 1227, 1851, 3681, 5553, 11043, 16659, 33129, 49977, 252353, 757059, 2271177, 6813531, 20440593]

約数ペア:

[(1, 20440593), (3, 6813531), (9, 2271177), (27, 757059), (81, 252353), (409, 49977), (617, 33129), (1227, 16659), (1851, 11043), (3681, 5553)]