21938660

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{23339}}^1$

素因数の和:23395

約数の個数: 24

約数和(自身を含む): 47053440

約数和(自身を除く): 25114780

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 23339, 46678, 93356, 116695, 233390, 466780, 1096933, 2193866, 4387732, 5484665, 10969330, 21938660]

約数ペア:

[(1, 21938660), (2, 10969330), (4, 5484665), (5, 4387732), (10, 2193866), (20, 1096933), (47, 466780), (94, 233390), (188, 116695), (235, 93356), (470, 46678), (940, 23339)]