31390177

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 41513472

約数和(自身を除く): 10123295

約数列:

[1, 7, 13, 17, 91, 103, 119, 197, 221, 721, 1339, 1379, 1547, 1751, 2561, 3349, 9373, 12257, 17927, 20291, 22763, 23443, 43537, 142037, 159341, 263783, 304759, 344947, 1846481, 2414629, 4484311, 31390177]

約数ペア:

[(1, 31390177), (7, 4484311), (13, 2414629), (17, 1846481), (91, 344947), (103, 304759), (119, 263783), (197, 159341), (221, 142037), (721, 43537), (1339, 23443), (1379, 22763), (1547, 20291), (1751, 17927), (2561, 12257), (3349, 9373)]