661218

素因数分解:

$2^1\times 3^1\times {\mathrm{193}}^1\times {\mathrm{571}}^1$

素因数の和:769

約数の個数: 16

約数和(自身を含む): 1331616

約数和(自身を除く): 670398

約数列:

[1, 2, 3, 6, 193, 386, 571, 579, 1142, 1158, 1713, 3426, 110203, 220406, 330609, 661218]

約数ペア:

[(1, 661218), (2, 330609), (3, 220406), (6, 110203), (193, 3426), (386, 1713), (571, 1158), (579, 1142)]