21525725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{619}}^1$

素因数の和:749

約数の個数: 24

約数和(自身を含む): 29060640

約数和(自身を除く): 7534915

約数列:

[1, 5, 13, 25, 65, 107, 325, 535, 619, 1391, 2675, 3095, 6955, 8047, 15475, 34775, 40235, 66233, 201175, 331165, 861029, 1655825, 4305145, 21525725]

約数ペア:

[(1, 21525725), (5, 4305145), (13, 1655825), (25, 861029), (65, 331165), (107, 201175), (325, 66233), (535, 40235), (619, 34775), (1391, 15475), (2675, 8047), (3095, 6955)]