20878575

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{5923}}^1$

素因数の和:5983

約数の個数: 24

約数和(自身を含む): 35259648

約数和(自身を除く): 14381073

約数列:

[1, 3, 5, 15, 25, 47, 75, 141, 235, 705, 1175, 3525, 5923, 17769, 29615, 88845, 148075, 278381, 444225, 835143, 1391905, 4175715, 6959525, 20878575]

約数ペア:

[(1, 20878575), (3, 6959525), (5, 4175715), (15, 1391905), (25, 835143), (47, 444225), (75, 278381), (141, 148075), (235, 88845), (705, 29615), (1175, 17769), (3525, 5923)]