15720228

素因数分解:

$2^2\times 3^2\times {\mathrm{436673}}^1$

素因数の和:436683

約数の個数: 18

約数和(自身を含む): 39737334

約数和(自身を除く): 24017106

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 436673, 873346, 1310019, 1746692, 2620038, 3930057, 5240076, 7860114, 15720228]

約数ペア:

[(1, 15720228), (2, 7860114), (3, 5240076), (4, 3930057), (6, 2620038), (9, 1746692), (12, 1310019), (18, 873346), (36, 436673)]