15221439

素因数分解:

$3^4\times {\mathrm{113}}^1\times {\mathrm{1663}}^1$

素因数の和:1788

約数の個数: 20

約数和(自身を含む): 22953216

約数和(自身を除く): 7731777

約数列:

[1, 3, 9, 27, 81, 113, 339, 1017, 1663, 3051, 4989, 9153, 14967, 44901, 134703, 187919, 563757, 1691271, 5073813, 15221439]

約数ペア:

[(1, 15221439), (3, 5073813), (9, 1691271), (27, 563757), (81, 187919), (113, 134703), (339, 44901), (1017, 14967), (1663, 9153), (3051, 4989)]