20958005

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{883}}^1$

素因数の和:1036

約数の個数: 16

約数和(自身を含む): 25968384

約数和(自身を除く): 5010379

約数列:

[1, 5, 47, 101, 235, 505, 883, 4415, 4747, 23735, 41501, 89183, 207505, 445915, 4191601, 20958005]

約数ペア:

[(1, 20958005), (5, 4191601), (47, 445915), (101, 207505), (235, 89183), (505, 41501), (883, 23735), (4415, 4747)]