21229990

素因数分解:

$2^1\times 5^1\times {\mathrm{433}}^1\times {\mathrm{4903}}^1$

素因数の和:5343

約数の個数: 16

約数和(自身を含む): 38310048

約数和(自身を除く): 17080058

約数列:

[1, 2, 5, 10, 433, 866, 2165, 4330, 4903, 9806, 24515, 49030, 2122999, 4245998, 10614995, 21229990]

約数ペア:

[(1, 21229990), (2, 10614995), (5, 4245998), (10, 2122999), (433, 49030), (866, 24515), (2165, 9806), (4330, 4903)]