1909399681

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{20297}}^1$

素因数の和:20544

約数の個数: 16

約数和(自身を含む): 2221413120

約数和(自身を除く): 312013439

約数列:

[1, 7, 89, 151, 623, 1057, 13439, 20297, 94073, 142079, 1806433, 3064847, 12645031, 21453929, 272771383, 1909399681]

約数ペア:

[(1, 1909399681), (7, 272771383), (89, 21453929), (151, 12645031), (623, 3064847), (1057, 1806433), (13439, 142079), (20297, 94073)]