21407335

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{5857}}^1$

素因数の和:5922

約数の個数: 16

約数和(自身を含む): 27837216

約数和(自身を除く): 6429881

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 5857, 29285, 99569, 251851, 497845, 1259255, 4281467, 21407335]

約数ペア:

[(1, 21407335), (5, 4281467), (17, 1259255), (43, 497845), (85, 251851), (215, 99569), (731, 29285), (3655, 5857)]