12720018

素因数分解:

$2^1\times 3^1\times {\mathrm{659}}^1\times {\mathrm{3217}}^1$

素因数の和:3881

約数の個数: 16

約数和(自身を含む): 25486560

約数和(自身を除く): 12766542

約数列:

[1, 2, 3, 6, 659, 1318, 1977, 3217, 3954, 6434, 9651, 19302, 2120003, 4240006, 6360009, 12720018]

約数ペア:

[(1, 12720018), (2, 6360009), (3, 4240006), (6, 2120003), (659, 19302), (1318, 9651), (1977, 6434), (3217, 3954)]