21577668

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{256877}}^1$

素因数の和:256891

約数の個数: 24

約数和(自身を含む): 57540672

約数和(自身を除く): 35963004

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 256877, 513754, 770631, 1027508, 1541262, 1798139, 3082524, 3596278, 5394417, 7192556, 10788834, 21577668]

約数ペア:

[(1, 21577668), (2, 10788834), (3, 7192556), (4, 5394417), (6, 3596278), (7, 3082524), (12, 1798139), (14, 1541262), (21, 1027508), (28, 770631), (42, 513754), (84, 256877)]