21165280

素因数分解:

$2^5\times 5^1\times {\mathrm{132283}}^1$

素因数の和:132298

約数の個数: 24

約数和(自身を含む): 50003352

約数和(自身を除く): 28838072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 132283, 264566, 529132, 661415, 1058264, 1322830, 2116528, 2645660, 4233056, 5291320, 10582640, 21165280]

約数ペア:

[(1, 21165280), (2, 10582640), (4, 5291320), (5, 4233056), (8, 2645660), (10, 2116528), (16, 1322830), (20, 1058264), (32, 661415), (40, 529132), (80, 264566), (160, 132283)]