21226120

素因数分解:

$2^3\times 5^1\times {\mathrm{530653}}^1$

素因数の和:530664

約数の個数: 16

約数和(自身を含む): 47758860

約数和(自身を除く): 26532740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 530653, 1061306, 2122612, 2653265, 4245224, 5306530, 10613060, 21226120]

約数ペア:

[(1, 21226120), (2, 10613060), (4, 5306530), (5, 4245224), (8, 2653265), (10, 2122612), (20, 1061306), (40, 530653)]