21090424

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{90907}}^1$

素因数の和:90942

約数の個数: 16

約数和(自身を含む): 40908600

約数和(自身を除く): 19818176

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 90907, 181814, 363628, 727256, 2636303, 5272606, 10545212, 21090424]

約数ペア:

[(1, 21090424), (2, 10545212), (4, 5272606), (8, 2636303), (29, 727256), (58, 363628), (116, 181814), (232, 90907)]