20652165

素因数分解:

$3^4\times 5^1\times {\mathrm{50993}}^1$

素因数の和:51010

約数の個数: 20

約数和(自身を含む): 37021644

約数和(自身を除く): 16369479

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 50993, 152979, 254965, 458937, 764895, 1376811, 2294685, 4130433, 6884055, 20652165]

約数ペア:

[(1, 20652165), (3, 6884055), (5, 4130433), (9, 2294685), (15, 1376811), (27, 764895), (45, 458937), (81, 254965), (135, 152979), (405, 50993)]