218005281

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{4447}}^1$

素因数の和:4885

約数の個数: 24

約数和(自身を含む): 340005120

約数和(自身を除く): 121999839

約数列:

[1, 3, 9, 13, 39, 117, 419, 1257, 3771, 4447, 5447, 13341, 16341, 40023, 49023, 57811, 173433, 520299, 1863293, 5589879, 16769637, 24222809, 72668427, 218005281]

約数ペア:

[(1, 218005281), (3, 72668427), (9, 24222809), (13, 16769637), (39, 5589879), (117, 1863293), (419, 520299), (1257, 173433), (3771, 57811), (4447, 49023), (5447, 40023), (13341, 16341)]