12689217

素因数分解:

$3^5\times {\mathrm{79}}^1\times {\mathrm{661}}^1$

素因数の和:755

約数の個数: 24

約数和(自身を含む): 19277440

約数和(自身を除く): 6588223

約数列:

[1, 3, 9, 27, 79, 81, 237, 243, 661, 711, 1983, 2133, 5949, 6399, 17847, 19197, 52219, 53541, 156657, 160623, 469971, 1409913, 4229739, 12689217]

約数ペア:

[(1, 12689217), (3, 4229739), (9, 1409913), (27, 469971), (79, 160623), (81, 156657), (237, 53541), (243, 52219), (661, 19197), (711, 17847), (1983, 6399), (2133, 5949)]