20686991

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1373}}^1$

素因数の和:1466

約数の個数: 16

約数和(自身を含む): 23852640

約数和(自身を除く): 3165649

約数列:

[1, 13, 19, 61, 247, 793, 1159, 1373, 15067, 17849, 26087, 83753, 339131, 1088789, 1591307, 20686991]

約数ペア:

[(1, 20686991), (13, 1591307), (19, 1088789), (61, 339131), (247, 83753), (793, 26087), (1159, 17849), (1373, 15067)]