218509970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{3121571}}^1$

素因数の和:3121585

約数の個数: 16

約数和(自身を含む): 449506368

約数和(自身を除く): 230996398

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 3121571, 6243142, 15607855, 21850997, 31215710, 43701994, 109254985, 218509970]

約数ペア:

[(1, 218509970), (2, 109254985), (5, 43701994), (7, 31215710), (10, 21850997), (14, 15607855), (35, 6243142), (70, 3121571)]