21206471

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{3617}}^1$

素因数の和:3682

約数の個数: 16

約数和(自身を含む): 25528608

約数和(自身を除く): 4322137

約数列:

[1, 11, 13, 41, 143, 451, 533, 3617, 5863, 39787, 47021, 148297, 517231, 1631267, 1927861, 21206471]

約数ペア:

[(1, 21206471), (11, 1927861), (13, 1631267), (41, 517231), (143, 148297), (451, 47021), (533, 39787), (3617, 5863)]