20997292

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{313}}^1\times {\mathrm{541}}^1$

素因数の和:889

約数の個数: 24

約数和(自身を含む): 38122112

約数和(自身を除く): 17124820

約数列:

[1, 2, 4, 31, 62, 124, 313, 541, 626, 1082, 1252, 2164, 9703, 16771, 19406, 33542, 38812, 67084, 169333, 338666, 677332, 5249323, 10498646, 20997292]

約数ペア:

[(1, 20997292), (2, 10498646), (4, 5249323), (31, 677332), (62, 338666), (124, 169333), (313, 67084), (541, 38812), (626, 33542), (1082, 19406), (1252, 16771), (2164, 9703)]