20218996

素因数分解:

$2^2\times 7^1\times {\mathrm{347}}^1\times {\mathrm{2081}}^1$

素因数の和:2439

約数の個数: 24

約数和(自身を含む): 40574016

約数和(自身を除く): 20355020

約数列:

[1, 2, 4, 7, 14, 28, 347, 694, 1388, 2081, 2429, 4162, 4858, 8324, 9716, 14567, 29134, 58268, 722107, 1444214, 2888428, 5054749, 10109498, 20218996]

約数ペア:

[(1, 20218996), (2, 10109498), (4, 5054749), (7, 2888428), (14, 1444214), (28, 722107), (347, 58268), (694, 29134), (1388, 14567), (2081, 9716), (2429, 8324), (4162, 4858)]