331721

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:128

約数の個数: 16

約数和(自身を含む): 403200

約数和(自身を除く): 71479

約数列:

[1, 13, 17, 19, 79, 221, 247, 323, 1027, 1343, 1501, 4199, 17459, 19513, 25517, 331721]

約数ペア:

[(1, 331721), (13, 25517), (17, 19513), (19, 17459), (79, 4199), (221, 1501), (247, 1343), (323, 1027)]