639778899

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{146369}}^1$

素因数の和:146450

約数の個数: 16

約数和(自身を含む): 899297280

約数和(自身を除く): 259518381

約数列:

[1, 3, 31, 47, 93, 141, 1457, 4371, 146369, 439107, 4537439, 6879343, 13612317, 20638029, 213259633, 639778899]

約数ペア:

[(1, 639778899), (3, 213259633), (31, 20638029), (47, 13612317), (93, 6879343), (141, 4537439), (1457, 439107), (4371, 146369)]