21738950

素因数分解:

$2^1\times 5^2\times {\mathrm{197}}^1\times {\mathrm{2207}}^1$

素因数の和:2416

約数の個数: 24

約数和(自身を含む): 40658112

約数和(自身を除く): 18919162

約数列:

[1, 2, 5, 10, 25, 50, 197, 394, 985, 1970, 2207, 4414, 4925, 9850, 11035, 22070, 55175, 110350, 434779, 869558, 2173895, 4347790, 10869475, 21738950]

約数ペア:

[(1, 21738950), (2, 10869475), (5, 4347790), (10, 2173895), (25, 869558), (50, 434779), (197, 110350), (394, 55175), (985, 22070), (1970, 11035), (2207, 9850), (4414, 4925)]