678090789

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{18691}}^1$

素因数の和:18865

約数の個数: 24

約数和(自身を含む): 1020583200

約数和(自身を除く): 342492411

約数列:

[1, 3, 9, 29, 87, 139, 261, 417, 1251, 4031, 12093, 18691, 36279, 56073, 168219, 542039, 1626117, 2598049, 4878351, 7794147, 23382441, 75343421, 226030263, 678090789]

約数ペア:

[(1, 678090789), (3, 226030263), (9, 75343421), (29, 23382441), (87, 7794147), (139, 4878351), (261, 2598049), (417, 1626117), (1251, 542039), (4031, 168219), (12093, 56073), (18691, 36279)]