21864573

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{14207}}^1$

素因数の和:14238

約数の個数: 20

約数和(自身を含む): 34383360

約数和(自身を除く): 12518787

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 14207, 42621, 127863, 269933, 383589, 809799, 1150767, 2429397, 7288191, 21864573]

約数ペア:

[(1, 21864573), (3, 7288191), (9, 2429397), (19, 1150767), (27, 809799), (57, 383589), (81, 269933), (171, 127863), (513, 42621), (1539, 14207)]