21787580

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{14923}}^1$

素因数の和:15005

約数の個数: 24

約数和(自身を含む): 46383792

約数和(自身を除く): 24596212

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 14923, 29846, 59692, 74615, 149230, 298460, 1089379, 2178758, 4357516, 5446895, 10893790, 21787580]

約数ペア:

[(1, 21787580), (2, 10893790), (4, 5446895), (5, 4357516), (10, 2178758), (20, 1089379), (73, 298460), (146, 149230), (292, 74615), (365, 59692), (730, 29846), (1460, 14923)]