217430889

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{2111}}^1$

素因数の和:2285

約数の個数: 32

約数和(自身を含む): 331161600

約数和(自身を除く): 113730711

約数列:

[1, 3, 13, 19, 39, 57, 139, 247, 417, 741, 1807, 2111, 2641, 5421, 6333, 7923, 27443, 34333, 40109, 82329, 102999, 120327, 293429, 521417, 880287, 1564251, 3814577, 5575151, 11443731, 16725453, 72476963, 217430889]

約数ペア:

[(1, 217430889), (3, 72476963), (13, 16725453), (19, 11443731), (39, 5575151), (57, 3814577), (139, 1564251), (247, 880287), (417, 521417), (741, 293429), (1807, 120327), (2111, 102999), (2641, 82329), (5421, 40109), (6333, 34333), (7923, 27443)]