81621228

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{523213}}^1$

素因数の和:523233

約数の個数: 24

約数和(自身を含む): 205099888

約数和(自身を除く): 123478660

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 523213, 1046426, 1569639, 2092852, 3139278, 6278556, 6801769, 13603538, 20405307, 27207076, 40810614, 81621228]

約数ペア:

[(1, 81621228), (2, 40810614), (3, 27207076), (4, 20405307), (6, 13603538), (12, 6801769), (13, 6278556), (26, 3139278), (39, 2092852), (52, 1569639), (78, 1046426), (156, 523213)]