81491669

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{1373}}^1$

素因数の和:1580

約数の個数: 16

約数和(自身を含む): 95410560

約数和(自身を除く): 13918891

約数列:

[1, 7, 61, 139, 427, 973, 1373, 8479, 9611, 59353, 83753, 190847, 586271, 1335929, 11641667, 81491669]

約数ペア:

[(1, 81491669), (7, 11641667), (61, 1335929), (139, 586271), (427, 190847), (973, 83753), (1373, 59353), (8479, 9611)]