28014021

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{9461}}^1$

素因数の和:9521

約数の個数: 24

約数和(自身を含む): 47234304

約数和(自身を除く): 19220283

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 9461, 28383, 66227, 85149, 198681, 444667, 596043, 1334001, 3112669, 4002003, 9338007, 28014021]

約数ペア:

[(1, 28014021), (3, 9338007), (7, 4002003), (9, 3112669), (21, 1334001), (47, 596043), (63, 444667), (141, 198681), (329, 85149), (423, 66227), (987, 28383), (2961, 9461)]