20187769

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1427}}^1$

素因数の和:1524

約数の個数: 16

約数和(自身を含む): 24127488

約数和(自身を除く): 3939719

約数列:

[1, 7, 43, 47, 301, 329, 1427, 2021, 9989, 14147, 61361, 67069, 429527, 469483, 2883967, 20187769]

約数ペア:

[(1, 20187769), (7, 2883967), (43, 469483), (47, 429527), (301, 67069), (329, 61361), (1427, 14147), (2021, 9989)]