21348957

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{8543}}^1$

素因数の和:8577

約数の個数: 24

約数和(自身を含む): 35064576

約数和(自身を除く): 13715619

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 8543, 25629, 59801, 145231, 179403, 418607, 435693, 1016617, 1255821, 3049851, 7116319, 21348957]

約数ペア:

[(1, 21348957), (3, 7116319), (7, 3049851), (17, 1255821), (21, 1016617), (49, 435693), (51, 418607), (119, 179403), (147, 145231), (357, 59801), (833, 25629), (2499, 8543)]