20665189

素因数分解:

${\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:372

約数の個数: 16

約数和(自身を含む): 22256640

約数和(自身を除く): 1591451

約数列:

[1, 31, 41, 71, 229, 1271, 2201, 2911, 7099, 9389, 16259, 90241, 291059, 504029, 666619, 20665189]

約数ペア:

[(1, 20665189), (31, 666619), (41, 504029), (71, 291059), (229, 90241), (1271, 16259), (2201, 9389), (2911, 7099)]