17812989

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:665

約数の個数: 24

約数和(自身を含む): 26863200

約数和(自身を除く): 9050211

約数列:

[1, 3, 9, 29, 87, 139, 261, 417, 491, 1251, 1473, 4031, 4419, 12093, 14239, 36279, 42717, 68249, 128151, 204747, 614241, 1979221, 5937663, 17812989]

約数ペア:

[(1, 17812989), (3, 5937663), (9, 1979221), (29, 614241), (87, 204747), (139, 128151), (261, 68249), (417, 42717), (491, 36279), (1251, 14239), (1473, 12093), (4031, 4419)]