8721349

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{401}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 10805760

約数和(自身を除く): 2084411

約数列:

[1, 7, 13, 91, 239, 401, 1673, 2807, 3107, 5213, 21749, 36491, 95839, 670873, 1245907, 8721349]

約数ペア:

[(1, 8721349), (7, 1245907), (13, 670873), (91, 95839), (239, 36491), (401, 21749), (1673, 5213), (2807, 3107)]