12720409

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:360

約数の個数: 16

約数和(自身を含む): 14192640

約数和(自身を除く): 1472231

約数列:

[1, 13, 47, 109, 191, 611, 1417, 2483, 5123, 8977, 20819, 66599, 116701, 270647, 978493, 12720409]

約数ペア:

[(1, 12720409), (13, 978493), (47, 270647), (109, 116701), (191, 66599), (611, 20819), (1417, 8977), (2483, 5123)]