12921849

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{5501}}^1$

素因数の和:5542

約数の個数: 20

約数和(自身を含む): 19972260

約数和(自身を除く): 7050411

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 5501, 16503, 49509, 148527, 159529, 445581, 478587, 1435761, 4307283, 12921849]

約数ペア:

[(1, 12921849), (3, 4307283), (9, 1435761), (27, 478587), (29, 445581), (81, 159529), (87, 148527), (261, 49509), (783, 16503), (2349, 5501)]