12109905

素因数分解:

$3^5\times 5^1\times {\mathrm{9967}}^1$

素因数の和:9987

約数の個数: 24

約数和(自身を含む): 21770112

約数和(自身を除く): 9660207

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 9967, 29901, 49835, 89703, 149505, 269109, 448515, 807327, 1345545, 2421981, 4036635, 12109905]

約数ペア:

[(1, 12109905), (3, 4036635), (5, 2421981), (9, 1345545), (15, 807327), (27, 448515), (45, 269109), (81, 149505), (135, 89703), (243, 49835), (405, 29901), (1215, 9967)]