21438131

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{761}}^1$

素因数の和:982

約数の個数: 16

約数和(自身を含む): 25347168

約数和(自身を除く): 3909037

約数列:

[1, 11, 13, 143, 197, 761, 2167, 2561, 8371, 9893, 28171, 108823, 149917, 1649087, 1948921, 21438131]

約数ペア:

[(1, 21438131), (11, 1948921), (13, 1649087), (143, 149917), (197, 108823), (761, 28171), (2167, 9893), (2561, 8371)]