21158350

素因数分解:

$2^1\times 5^2\times {\mathrm{263}}^1\times {\mathrm{1609}}^1$

素因数の和:1884

約数の個数: 24

約数和(自身を含む): 39528720

約数和(自身を除く): 18370370

約数列:

[1, 2, 5, 10, 25, 50, 263, 526, 1315, 1609, 2630, 3218, 6575, 8045, 13150, 16090, 40225, 80450, 423167, 846334, 2115835, 4231670, 10579175, 21158350]

約数ペア:

[(1, 21158350), (2, 10579175), (5, 4231670), (10, 2115835), (25, 846334), (50, 423167), (263, 80450), (526, 40225), (1315, 16090), (1609, 13150), (2630, 8045), (3218, 6575)]