16981237

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{977}}^1$

素因数の和:1188

約数の個数: 16

約数和(自身を含む): 21030912

約数和(自身を除く): 4049675

約数列:

[1, 7, 13, 91, 191, 977, 1337, 2483, 6839, 12701, 17381, 88907, 186607, 1306249, 2425891, 16981237]

約数ペア:

[(1, 16981237), (7, 2425891), (13, 1306249), (91, 186607), (191, 88907), (977, 17381), (1337, 12701), (2483, 6839)]