13211991

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{12547}}^1$

素因数の和:12572

約数の個数: 20

約数和(自身を含む): 21256312

約数和(自身を除く): 8044321

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 12547, 37641, 112923, 163111, 338769, 489333, 1016307, 1467999, 4403997, 13211991]

約数ペア:

[(1, 13211991), (3, 4403997), (9, 1467999), (13, 1016307), (27, 489333), (39, 338769), (81, 163111), (117, 112923), (351, 37641), (1053, 12547)]