20722775

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{521}}^1$

素因数の和:611

約数の個数: 24

約数和(自身を含む): 27056304

約数和(自身を除く): 6333529

約数列:

[1, 5, 25, 37, 43, 185, 215, 521, 925, 1075, 1591, 2605, 7955, 13025, 19277, 22403, 39775, 96385, 112015, 481925, 560075, 828911, 4144555, 20722775]

約数ペア:

[(1, 20722775), (5, 4144555), (25, 828911), (37, 560075), (43, 481925), (185, 112015), (215, 96385), (521, 39775), (925, 22403), (1075, 19277), (1591, 13025), (2605, 7955)]