20173665

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31277}}^1$

素因数の和:31328

約数の個数: 16

約数和(自身を含む): 33029568

約数和(自身を除く): 12855903

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 31277, 93831, 156385, 469155, 1344911, 4034733, 6724555, 20173665]

約数ペア:

[(1, 20173665), (3, 6724555), (5, 4034733), (15, 1344911), (43, 469155), (129, 156385), (215, 93831), (645, 31277)]