21567404

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{563}}^1$

素因数の和:785

約数の個数: 24

約数和(自身を含む): 38674608

約数和(自身を除く): 17107204

約数列:

[1, 2, 4, 61, 122, 157, 244, 314, 563, 628, 1126, 2252, 9577, 19154, 34343, 38308, 68686, 88391, 137372, 176782, 353564, 5391851, 10783702, 21567404]

約数ペア:

[(1, 21567404), (2, 10783702), (4, 5391851), (61, 353564), (122, 176782), (157, 137372), (244, 88391), (314, 68686), (563, 38308), (628, 34343), (1126, 19154), (2252, 9577)]