20808567

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{607}}^1$

素因数の和:919

約数の個数: 24

約数和(自身を含む): 32532864

約数和(自身を除く): 11724297

約数列:

[1, 3, 9, 13, 39, 117, 293, 607, 879, 1821, 2637, 3809, 5463, 7891, 11427, 23673, 34281, 71019, 177851, 533553, 1600659, 2312063, 6936189, 20808567]

約数ペア:

[(1, 20808567), (3, 6936189), (9, 2312063), (13, 1600659), (39, 533553), (117, 177851), (293, 71019), (607, 34281), (879, 23673), (1821, 11427), (2637, 7891), (3809, 5463)]