20862725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2791}}^1$

素因数の和:2837

約数の個数: 24

約数和(自身を含む): 29081472

約数和(自身を除く): 8218747

約数列:

[1, 5, 13, 23, 25, 65, 115, 299, 325, 575, 1495, 2791, 7475, 13955, 36283, 64193, 69775, 181415, 320965, 834509, 907075, 1604825, 4172545, 20862725]

約数ペア:

[(1, 20862725), (5, 4172545), (13, 1604825), (23, 907075), (25, 834509), (65, 320965), (115, 181415), (299, 69775), (325, 64193), (575, 36283), (1495, 13955), (2791, 7475)]