71384131

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{2287}}^1$

素因数の和:2328

約数の個数: 20

約数和(自身を含む): 89721632

約数和(自身を除く): 18337501

約数列:

[1, 7, 13, 49, 91, 343, 637, 2287, 2401, 4459, 16009, 29731, 31213, 112063, 208117, 784441, 1456819, 5491087, 10197733, 71384131]

約数ペア:

[(1, 71384131), (7, 10197733), (13, 5491087), (49, 1456819), (91, 784441), (343, 208117), (637, 112063), (2287, 31213), (2401, 29731), (4459, 16009)]