20879295

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32371}}^1$

素因数の和:32422

約数の個数: 16

約数和(自身を含む): 34184832

約数和(自身を除く): 13305537

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 32371, 97113, 161855, 485565, 1391953, 4175859, 6959765, 20879295]

約数ペア:

[(1, 20879295), (3, 6959765), (5, 4175859), (15, 1391953), (43, 485565), (129, 161855), (215, 97113), (645, 32371)]