20122947

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{587}}^1$

素因数の和:899

約数の個数: 24

約数和(自身を含む): 31462704

約数和(自身を除く): 11339757

約数列:

[1, 3, 9, 13, 39, 117, 293, 587, 879, 1761, 2637, 3809, 5283, 7631, 11427, 22893, 34281, 68679, 171991, 515973, 1547919, 2235883, 6707649, 20122947]

約数ペア:

[(1, 20122947), (3, 6707649), (9, 2235883), (13, 1547919), (39, 515973), (117, 171991), (293, 68679), (587, 34281), (879, 22893), (1761, 11427), (2637, 7631), (3809, 5283)]