20478578

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{1049}}^1$

素因数の和:1321

約数の個数: 16

約数和(自身を含む): 31600800

約数和(自身を除く): 11122222

約数列:

[1, 2, 43, 86, 227, 454, 1049, 2098, 9761, 19522, 45107, 90214, 238123, 476246, 10239289, 20478578]

約数ペア:

[(1, 20478578), (2, 10239289), (43, 476246), (86, 238123), (227, 90214), (454, 45107), (1049, 19522), (2098, 9761)]