218525889

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{1231}}^1\times {\mathrm{1259}}^1$

素因数の和:2540

約数の個数: 16

約数和(自身を含む): 298045440

約数和(自身を除く): 79519551

約数列:

[1, 3, 47, 141, 1231, 1259, 3693, 3777, 57857, 59173, 173571, 177519, 1549829, 4649487, 72841963, 218525889]

約数ペア:

[(1, 218525889), (3, 72841963), (47, 4649487), (141, 1549829), (1231, 177519), (1259, 173571), (3693, 59173), (3777, 57857)]