81320558

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{1559}}^1\times {\mathrm{2371}}^1$

素因数の和:3943

約数の個数: 16

約数和(自身を含む): 133211520

約数和(自身を除く): 51890962

約数列:

[1, 2, 11, 22, 1559, 2371, 3118, 4742, 17149, 26081, 34298, 52162, 3696389, 7392778, 40660279, 81320558]

約数ペア:

[(1, 81320558), (2, 40660279), (11, 7392778), (22, 3696389), (1559, 52162), (2371, 34298), (3118, 26081), (4742, 17149)]