20955705

素因数分解:

$3^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{4003}}^1$

素因数の和:4360

約数の個数: 16

約数和(自身を含む): 33633600

約数和(自身を除く): 12677895

約数列:

[1, 3, 5, 15, 349, 1047, 1745, 4003, 5235, 12009, 20015, 60045, 1397047, 4191141, 6985235, 20955705]

約数ペア:

[(1, 20955705), (3, 6985235), (5, 4191141), (15, 1397047), (349, 60045), (1047, 20015), (1745, 12009), (4003, 5235)]