21789548

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{2347}}^1$

素因数の和:2573

約数の個数: 24

約数和(自身を含む): 41813184

約数和(自身を除く): 20023636

約数列:

[1, 2, 4, 11, 22, 44, 211, 422, 844, 2321, 2347, 4642, 4694, 9284, 9388, 25817, 51634, 103268, 495217, 990434, 1980868, 5447387, 10894774, 21789548]

約数ペア:

[(1, 21789548), (2, 10894774), (4, 5447387), (11, 1980868), (22, 990434), (44, 495217), (211, 103268), (422, 51634), (844, 25817), (2321, 9388), (2347, 9284), (4642, 4694)]