20947450

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{9743}}^1$

素因数の和:9798

約数の個数: 24

約数和(自身を含む): 39872448

約数和(自身を除く): 18924998

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 430, 1075, 2150, 9743, 19486, 48715, 97430, 243575, 418949, 487150, 837898, 2094745, 4189490, 10473725, 20947450]

約数ペア:

[(1, 20947450), (2, 10473725), (5, 4189490), (10, 2094745), (25, 837898), (43, 487150), (50, 418949), (86, 243575), (215, 97430), (430, 48715), (1075, 19486), (2150, 9743)]