20509935

素因数分解:

$3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{6871}}^1$

素因数の和:7078

約数の個数: 16

約数和(自身を含む): 32985600

約数和(自身を除く): 12475665

約数列:

[1, 3, 5, 15, 199, 597, 995, 2985, 6871, 20613, 34355, 103065, 1367329, 4101987, 6836645, 20509935]

約数ペア:

[(1, 20509935), (3, 6836645), (5, 4101987), (15, 1367329), (199, 103065), (597, 34355), (995, 20613), (2985, 6871)]