645892551

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{12007}}^1$

素因数の和:12195

約数の個数: 24

約数和(自身を含む): 961600640

約数和(自身を除く): 315708089

約数列:

[1, 3, 9, 43, 129, 139, 387, 417, 1251, 5977, 12007, 17931, 36021, 53793, 108063, 516301, 1548903, 1668973, 4646709, 5006919, 15020757, 71765839, 215297517, 645892551]

約数ペア:

[(1, 645892551), (3, 215297517), (9, 71765839), (43, 15020757), (129, 5006919), (139, 4646709), (387, 1668973), (417, 1548903), (1251, 516301), (5977, 108063), (12007, 53793), (17931, 36021)]