21090256

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{119831}}^1$

素因数の和:119850

約数の個数: 20

約数和(自身を含む): 44577504

約数和(自身を除く): 23487248

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 119831, 239662, 479324, 958648, 1318141, 1917296, 2636282, 5272564, 10545128, 21090256]

約数ペア:

[(1, 21090256), (2, 10545128), (4, 5272564), (8, 2636282), (11, 1917296), (16, 1318141), (22, 958648), (44, 479324), (88, 239662), (176, 119831)]