20127285

素因数分解:

$3^4\times 5^1\times {\mathrm{49697}}^1$

素因数の和:49714

約数の個数: 20

約数和(自身を含む): 36080748

約数和(自身を除く): 15953463

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49697, 149091, 248485, 447273, 745455, 1341819, 2236365, 4025457, 6709095, 20127285]

約数ペア:

[(1, 20127285), (3, 6709095), (5, 4025457), (9, 2236365), (15, 1341819), (27, 745455), (45, 447273), (81, 248485), (135, 149091), (405, 49697)]