211318317

素因数分解:

$3^2\times 7^1\times {\mathrm{1129}}^1\times {\mathrm{2971}}^1$

素因数の和:4113

約数の個数: 24

約数和(自身を含む): 349269440

約数和(自身を除く): 137951123

約数列:

[1, 3, 7, 9, 21, 63, 1129, 2971, 3387, 7903, 8913, 10161, 20797, 23709, 26739, 62391, 71127, 187173, 3354259, 10062777, 23479813, 30188331, 70439439, 211318317]

約数ペア:

[(1, 211318317), (3, 70439439), (7, 30188331), (9, 23479813), (21, 10062777), (63, 3354259), (1129, 187173), (2971, 71127), (3387, 62391), (7903, 26739), (8913, 23709), (10161, 20797)]