17720927

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{883}}^1$

素因数の和:998

約数の個数: 16

約数和(自身を含む): 21046272

約数和(自身を除く): 3325345

約数列:

[1, 7, 47, 61, 329, 427, 883, 2867, 6181, 20069, 41501, 53863, 290507, 377041, 2531561, 17720927]

約数ペア:

[(1, 17720927), (7, 2531561), (47, 377041), (61, 290507), (329, 53863), (427, 41501), (883, 20069), (2867, 6181)]