18933957

素因数分解:

$3^2\times 7^1\times {\mathrm{271}}^1\times {\mathrm{1109}}^1$

素因数の和:1393

約数の個数: 24

約数和(自身を含む): 31399680

約数和(自身を除く): 12465723

約数列:

[1, 3, 7, 9, 21, 63, 271, 813, 1109, 1897, 2439, 3327, 5691, 7763, 9981, 17073, 23289, 69867, 300539, 901617, 2103773, 2704851, 6311319, 18933957]

約数ペア:

[(1, 18933957), (3, 6311319), (7, 2704851), (9, 2103773), (21, 901617), (63, 300539), (271, 69867), (813, 23289), (1109, 17073), (1897, 9981), (2439, 7763), (3327, 5691)]