19921100

素因数分解:

$2^2\times 5^2\times {\mathrm{199211}}^1$

素因数の和:199225

約数の個数: 18

約数和(自身を含む): 43229004

約数和(自身を除く): 23307904

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 199211, 398422, 796844, 996055, 1992110, 3984220, 4980275, 9960550, 19921100]

約数ペア:

[(1, 19921100), (2, 9960550), (4, 4980275), (5, 3984220), (10, 1992110), (20, 996055), (25, 796844), (50, 398422), (100, 199211)]