81865564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{1860581}}^1$

素因数の和:1860596

約数の個数: 12

約数和(自身を含む): 156288888

約数和(自身を除く): 74423324

約数列:

[1, 2, 4, 11, 22, 44, 1860581, 3721162, 7442324, 20466391, 40932782, 81865564]

約数ペア:

[(1, 81865564), (2, 40932782), (4, 20466391), (11, 7442324), (22, 3721162), (44, 1860581)]