20123687961

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{620929}}^1$

素因数の和:621225

約数の個数: 24

約数和(自身を含む): 31416574280

約数和(自身を除く): 11292886319

約数列:

[1, 3, 9, 13, 39, 117, 277, 831, 2493, 3601, 10803, 32409, 620929, 1862787, 5588361, 8072077, 24216231, 72648693, 171997333, 515991999, 1547975997, 2235965329, 6707895987, 20123687961]

約数ペア:

[(1, 20123687961), (3, 6707895987), (9, 2235965329), (13, 1547975997), (39, 515991999), (117, 171997333), (277, 72648693), (831, 24216231), (2493, 8072077), (3601, 5588361), (10803, 1862787), (32409, 620929)]