863055

素因数分解:

$3^4\times 5^1\times {\mathrm{2131}}^1$

素因数の和:2148

約数の個数: 20

約数和(自身を含む): 1547832

約数和(自身を除く): 684777

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2131, 6393, 10655, 19179, 31965, 57537, 95895, 172611, 287685, 863055]

約数ペア:

[(1, 863055), (3, 287685), (5, 172611), (9, 95895), (15, 57537), (27, 31965), (45, 19179), (81, 10655), (135, 6393), (405, 2131)]