21030985

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{1439}}^1$

素因数の和:1560

約数の個数: 16

約数和(自身を含む): 26265600

約数和(自身を除く): 5234615

約数列:

[1, 5, 37, 79, 185, 395, 1439, 2923, 7195, 14615, 53243, 113681, 266215, 568405, 4206197, 21030985]

約数ペア:

[(1, 21030985), (5, 4206197), (37, 568405), (79, 266215), (185, 113681), (395, 53243), (1439, 14615), (2923, 7195)]