387971857

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{751}}^1\times {\mathrm{811}}^1$

素因数の和:1589

約数の個数: 24

約数和(自身を含む): 487277952

約数和(自身を除く): 99306095

約数列:

[1, 7, 13, 49, 91, 637, 751, 811, 5257, 5677, 9763, 10543, 36799, 39739, 68341, 73801, 478387, 516607, 609061, 4263427, 7917793, 29843989, 55424551, 387971857]

約数ペア:

[(1, 387971857), (7, 55424551), (13, 29843989), (49, 7917793), (91, 4263427), (637, 609061), (751, 516607), (811, 478387), (5257, 73801), (5677, 68341), (9763, 39739), (10543, 36799)]