661657218

素因数分解:

$2^1\times 3^1\times {\mathrm{401}}^1\times {\mathrm{275003}}^1$

素因数の和:275409

約数の個数: 16

約数和(自身を含む): 1326619296

約数和(自身を除く): 664962078

約数列:

[1, 2, 3, 6, 401, 802, 1203, 2406, 275003, 550006, 825009, 1650018, 110276203, 220552406, 330828609, 661657218]

約数ペア:

[(1, 661657218), (2, 330828609), (3, 220552406), (6, 110276203), (401, 1650018), (802, 825009), (1203, 550006), (2406, 275003)]