21271166025

素因数分解:

$3^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{2753549}}^1$

素因数の和:2753665

約数の個数: 24

約数和(自身を含む): 35509780800

約数和(自身を除く): 14238614775

約数列:

[1, 3, 5, 15, 25, 75, 103, 309, 515, 1545, 2575, 7725, 2753549, 8260647, 13767745, 41303235, 68838725, 206516175, 283615547, 850846641, 1418077735, 4254233205, 7090388675, 21271166025]

約数ペア:

[(1, 21271166025), (3, 7090388675), (5, 4254233205), (15, 1418077735), (25, 850846641), (75, 283615547), (103, 206516175), (309, 68838725), (515, 41303235), (1545, 13767745), (2575, 8260647), (7725, 2753549)]