12721209

素因数分解:

$3^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1\times {\mathrm{193}}^1$

素因数の和:496

約数の個数: 16

約数和(自身を含む): 17283072

約数和(自身を除く): 4561863

約数列:

[1, 3, 127, 173, 193, 381, 519, 579, 21971, 24511, 33389, 65913, 73533, 100167, 4240403, 12721209]

約数ペア:

[(1, 12721209), (3, 4240403), (127, 100167), (173, 73533), (193, 65913), (381, 33389), (519, 24511), (579, 21971)]