2198259

素因数分解:

$3^4\times 7^1\times {\mathrm{3877}}^1$

素因数の和:3896

約数の個数: 20

約数和(自身を含む): 3753904

約数和(自身を除く): 1555645

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 3877, 11631, 27139, 34893, 81417, 104679, 244251, 314037, 732753, 2198259]

約数ペア:

[(1, 2198259), (3, 732753), (7, 314037), (9, 244251), (21, 104679), (27, 81417), (63, 34893), (81, 27139), (189, 11631), (567, 3877)]