21058809

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1\times {\mathrm{983}}^1$

素因数の和:1216

約数の個数: 16

約数和(自身を含む): 29016192

約数和(自身を除く): 7957383

約数列:

[1, 3, 37, 111, 193, 579, 983, 2949, 7141, 21423, 36371, 109113, 189719, 569157, 7019603, 21058809]

約数ペア:

[(1, 21058809), (3, 7019603), (37, 569157), (111, 189719), (193, 109113), (579, 36371), (983, 21423), (2949, 7141)]