21243244

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43891}}^1$

素因数の和:43917

約数の個数: 18

約数和(自身を含む): 40863452

約数和(自身を除く): 19620208

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 43891, 87782, 175564, 482801, 965602, 1931204, 5310811, 10621622, 21243244]

約数ペア:

[(1, 21243244), (2, 10621622), (4, 5310811), (11, 1931204), (22, 965602), (44, 482801), (121, 175564), (242, 87782), (484, 43891)]