12805209

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{1061}}^1$

素因数の和:1222

約数の個数: 20

約数和(自身を含む): 19275300

約数和(自身を除く): 6470091

約数列:

[1, 3, 9, 27, 81, 149, 447, 1061, 1341, 3183, 4023, 9549, 12069, 28647, 85941, 158089, 474267, 1422801, 4268403, 12805209]

約数ペア:

[(1, 12805209), (3, 4268403), (9, 1422801), (27, 474267), (81, 158089), (149, 85941), (447, 28647), (1061, 12069), (1341, 9549), (3183, 4023)]