20039805

素因数分解:

$3^4\times 5^1\times {\mathrm{49481}}^1$

素因数の和:49498

約数の個数: 20

約数和(自身を含む): 35923932

約数和(自身を除く): 15884127

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49481, 148443, 247405, 445329, 742215, 1335987, 2226645, 4007961, 6679935, 20039805]

約数ペア:

[(1, 20039805), (3, 6679935), (5, 4007961), (9, 2226645), (15, 1335987), (27, 742215), (45, 445329), (81, 247405), (135, 148443), (405, 49481)]