21903860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{99563}}^1$

素因数の和:99583

約数の個数: 24

約数和(自身を含む): 50180256

約数和(自身を除く): 28276396

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 99563, 199126, 398252, 497815, 995630, 1095193, 1991260, 2190386, 4380772, 5475965, 10951930, 21903860]

約数ペア:

[(1, 21903860), (2, 10951930), (4, 5475965), (5, 4380772), (10, 2190386), (11, 1991260), (20, 1095193), (22, 995630), (44, 497815), (55, 398252), (110, 199126), (220, 99563)]