12451887

素因数分解:

$3^4\times 7^1\times {\mathrm{21961}}^1$

素因数の和:21980

約数の個数: 20

約数和(自身を含む): 21259216

約数和(自身を除く): 8807329

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 21961, 65883, 153727, 197649, 461181, 592947, 1383543, 1778841, 4150629, 12451887]

約数ペア:

[(1, 12451887), (3, 4150629), (7, 1778841), (9, 1383543), (21, 592947), (27, 461181), (63, 197649), (81, 153727), (189, 65883), (567, 21961)]