21421850

素因数分解:

$2^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{5869}}^1$

素因数の和:5954

約数の個数: 24

約数和(自身を含む): 40397340

約数和(自身を除く): 18975490

約数列:

[1, 2, 5, 10, 25, 50, 73, 146, 365, 730, 1825, 3650, 5869, 11738, 29345, 58690, 146725, 293450, 428437, 856874, 2142185, 4284370, 10710925, 21421850]

約数ペア:

[(1, 21421850), (2, 10710925), (5, 4284370), (10, 2142185), (25, 856874), (50, 428437), (73, 293450), (146, 146725), (365, 58690), (730, 29345), (1825, 11738), (3650, 5869)]