18976809

素因数分解:

$3^1\times {\mathrm{41}}^2\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:209

約数の個数: 24

約数和(自身を含む): 26796096

約数和(自身を除く): 7819287

約数列:

[1, 3, 41, 53, 71, 123, 159, 213, 1681, 2173, 2911, 3763, 5043, 6519, 8733, 11289, 89093, 119351, 154283, 267279, 358053, 462849, 6325603, 18976809]

約数ペア:

[(1, 18976809), (3, 6325603), (41, 462849), (53, 358053), (71, 267279), (123, 154283), (159, 119351), (213, 89093), (1681, 11289), (2173, 8733), (2911, 6519), (3763, 5043)]