21090108

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{135193}}^1$

素因数の和:135213

約数の個数: 24

約数和(自身を含む): 52996048

約数和(自身を除く): 31905940

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 135193, 270386, 405579, 540772, 811158, 1622316, 1757509, 3515018, 5272527, 7030036, 10545054, 21090108]

約数ペア:

[(1, 21090108), (2, 10545054), (3, 7030036), (4, 5272527), (6, 3515018), (12, 1757509), (13, 1622316), (26, 811158), (39, 540772), (52, 405579), (78, 270386), (156, 135193)]