18103509

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{691}}^1$

素因数の和:809

約数の個数: 24

約数和(自身を含む): 27203904

約数和(自身を除く): 9100395

約数列:

[1, 3, 9, 41, 71, 123, 213, 369, 639, 691, 2073, 2911, 6219, 8733, 26199, 28331, 49061, 84993, 147183, 254979, 441549, 2011501, 6034503, 18103509]

約数ペア:

[(1, 18103509), (3, 6034503), (9, 2011501), (41, 441549), (71, 254979), (123, 147183), (213, 84993), (369, 49061), (639, 28331), (691, 26199), (2073, 8733), (2911, 6219)]