21185643

素因数分解:

$3^1\times {\mathrm{41}}^2\times {\mathrm{4201}}^1$

素因数の和:4286

約数の個数: 12

約数和(自身を含む): 28960184

約数和(自身を除く): 7774541

約数列:

[1, 3, 41, 123, 1681, 4201, 5043, 12603, 172241, 516723, 7061881, 21185643]

約数ペア:

[(1, 21185643), (3, 7061881), (41, 516723), (123, 172241), (1681, 12603), (4201, 5043)]