20838291

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{887}}^1$

素因数の和:1122

約数の個数: 16

約数和(自身を含む): 28643328

約数和(自身を除く): 7805037

約数列:

[1, 3, 41, 123, 191, 573, 887, 2661, 7831, 23493, 36367, 109101, 169417, 508251, 6946097, 20838291]

約数ペア:

[(1, 20838291), (3, 6946097), (41, 508251), (123, 169417), (191, 109101), (573, 36367), (887, 23493), (2661, 7831)]