20838088

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{42701}}^1$

素因数の和:42768

約数の個数: 16

約数和(自身を含む): 39712860

約数和(自身を除く): 18874772

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 42701, 85402, 170804, 341608, 2604761, 5209522, 10419044, 20838088]

約数ペア:

[(1, 20838088), (2, 10419044), (4, 5209522), (8, 2604761), (61, 341608), (122, 170804), (244, 85402), (488, 42701)]