20315775

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{7321}}^1$

素因数の和:7371

約数の個数: 24

約数和(自身を含む): 34501264

約数和(自身を除く): 14185489

約数列:

[1, 3, 5, 15, 25, 37, 75, 111, 185, 555, 925, 2775, 7321, 21963, 36605, 109815, 183025, 270877, 549075, 812631, 1354385, 4063155, 6771925, 20315775]

約数ペア:

[(1, 20315775), (3, 6771925), (5, 4063155), (15, 1354385), (25, 812631), (37, 549075), (75, 270877), (111, 183025), (185, 109815), (555, 36605), (925, 21963), (2775, 7321)]