8427645

素因数分解:

$3^4\times 5^1\times {\mathrm{20809}}^1$

素因数の和:20826

約数の個数: 20

約数和(自身を含む): 15108060

約数和(自身を除く): 6680415

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 20809, 62427, 104045, 187281, 312135, 561843, 936405, 1685529, 2809215, 8427645]

約数ペア:

[(1, 8427645), (3, 2809215), (5, 1685529), (9, 936405), (15, 561843), (27, 312135), (45, 187281), (81, 104045), (135, 62427), (405, 20809)]