12981399

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{977}}^1$

素因数の和:1126

約数の個数: 16

約数和(自身を含む): 17901312

約数和(自身を除く): 4919913

約数列:

[1, 3, 43, 103, 129, 309, 977, 2931, 4429, 13287, 42011, 100631, 126033, 301893, 4327133, 12981399]

約数ペア:

[(1, 12981399), (3, 4327133), (43, 301893), (103, 126033), (129, 100631), (309, 42011), (977, 13287), (2931, 4429)]