28291428

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{71443}}^1$

素因数の和:71464

約数の個数: 36

約数和(自身を含む): 78016848

約数和(自身を除く): 49725420

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396, 71443, 142886, 214329, 285772, 428658, 642987, 785873, 857316, 1285974, 1571746, 2357619, 2571948, 3143492, 4715238, 7072857, 9430476, 14145714, 28291428]

約数ペア:

[(1, 28291428), (2, 14145714), (3, 9430476), (4, 7072857), (6, 4715238), (9, 3143492), (11, 2571948), (12, 2357619), (18, 1571746), (22, 1285974), (33, 857316), (36, 785873), (44, 642987), (66, 428658), (99, 285772), (132, 214329), (198, 142886), (396, 71443)]