19914340

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{3967}}^1$

素因数の和:4227

約数の個数: 24

約数和(自身を含む): 41997312

約数和(自身を除く): 22082972

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 3967, 5020, 7934, 15868, 19835, 39670, 79340, 995717, 1991434, 3982868, 4978585, 9957170, 19914340]

約数ペア:

[(1, 19914340), (2, 9957170), (4, 4978585), (5, 3982868), (10, 1991434), (20, 995717), (251, 79340), (502, 39670), (1004, 19835), (1255, 15868), (2510, 7934), (3967, 5020)]