21842660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{156019}}^1$

素因数の和:156035

約数の個数: 24

約数和(自身を含む): 52422720

約数和(自身を除く): 30580060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 156019, 312038, 624076, 780095, 1092133, 1560190, 2184266, 3120380, 4368532, 5460665, 10921330, 21842660]

約数ペア:

[(1, 21842660), (2, 10921330), (4, 5460665), (5, 4368532), (7, 3120380), (10, 2184266), (14, 1560190), (20, 1092133), (28, 780095), (35, 624076), (70, 312038), (140, 156019)]