20447078

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{8821}}^1$

素因数の和:8903

約数の個数: 16

約数和(自身を含む): 32817840

約数和(自身を除く): 12370762

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 8821, 17642, 167599, 335198, 538081, 1076162, 10223539, 20447078]

約数ペア:

[(1, 20447078), (2, 10223539), (19, 1076162), (38, 538081), (61, 335198), (122, 167599), (1159, 17642), (2318, 8821)]