20561764

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{1051}}^1$

素因数の和:1195

約数の個数: 24

約数和(自身を含む): 37055648

約数和(自身を除く): 16493884

約数列:

[1, 2, 4, 67, 73, 134, 146, 268, 292, 1051, 2102, 4204, 4891, 9782, 19564, 70417, 76723, 140834, 153446, 281668, 306892, 5140441, 10280882, 20561764]

約数ペア:

[(1, 20561764), (2, 10280882), (4, 5140441), (67, 306892), (73, 281668), (134, 153446), (146, 140834), (268, 76723), (292, 70417), (1051, 19564), (2102, 9782), (4204, 4891)]