21271042

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{4729}}^1$

素因数の和:4917

約数の個数: 16

約数和(自身を含む): 34566840

約数和(自身を除く): 13295798

約数列:

[1, 2, 13, 26, 173, 346, 2249, 4498, 4729, 9458, 61477, 122954, 818117, 1636234, 10635521, 21271042]

約数ペア:

[(1, 21271042), (2, 10635521), (13, 1636234), (26, 818117), (173, 122954), (346, 61477), (2249, 9458), (4498, 4729)]