20927425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1201}}^1$

素因数の和:1269

約数の個数: 24

約数和(自身を含む): 28170072

約数和(自身を除く): 7242647

約数列:

[1, 5, 17, 25, 41, 85, 205, 425, 697, 1025, 1201, 3485, 6005, 17425, 20417, 30025, 49241, 102085, 246205, 510425, 837097, 1231025, 4185485, 20927425]

約数ペア:

[(1, 20927425), (5, 4185485), (17, 1231025), (25, 837097), (41, 510425), (85, 246205), (205, 102085), (425, 49241), (697, 30025), (1025, 20417), (1201, 17425), (3485, 6005)]