20237985

素因数分解:

$3^3\times 5^1\times {\mathrm{149911}}^1$

素因数の和:149925

約数の個数: 16

約数和(自身を含む): 35978880

約数和(自身を除く): 15740895

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 149911, 449733, 749555, 1349199, 2248665, 4047597, 6745995, 20237985]

約数ペア:

[(1, 20237985), (3, 6745995), (5, 4047597), (9, 2248665), (15, 1349199), (27, 749555), (45, 449733), (135, 149911)]