20472945

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31741}}^1$

素因数の和:31792

約数の個数: 16

約数和(自身を含む): 33519552

約数和(自身を除く): 13046607

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 31741, 95223, 158705, 476115, 1364863, 4094589, 6824315, 20472945]

約数ペア:

[(1, 20472945), (3, 6824315), (5, 4094589), (15, 1364863), (43, 476115), (129, 158705), (215, 95223), (645, 31741)]