21069260

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{14431}}^1$

素因数の和:14513

約数の個数: 24

約数和(自身を含む): 44854656

約数和(自身を除く): 23785396

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 14431, 28862, 57724, 72155, 144310, 288620, 1053463, 2106926, 4213852, 5267315, 10534630, 21069260]

約数ペア:

[(1, 21069260), (2, 10534630), (4, 5267315), (5, 4213852), (10, 2106926), (20, 1053463), (73, 288620), (146, 144310), (292, 72155), (365, 57724), (730, 28862), (1460, 14431)]