21873640

素因数分解:

$2^3\times 5^1\times {\mathrm{546841}}^1$

素因数の和:546852

約数の個数: 16

約数和(自身を含む): 49215780

約数和(自身を除く): 27342140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 546841, 1093682, 2187364, 2734205, 4374728, 5468410, 10936820, 21873640]

約数ペア:

[(1, 21873640), (2, 10936820), (4, 5468410), (5, 4374728), (8, 2734205), (10, 2187364), (20, 1093682), (40, 546841)]