19498401

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{18517}}^1$

素因数の和:18542

約数の個数: 20

約数和(自身を含む): 31369492

約数和(自身を除く): 11871091

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 18517, 55551, 166653, 240721, 499959, 722163, 1499877, 2166489, 6499467, 19498401]

約数ペア:

[(1, 19498401), (3, 6499467), (9, 2166489), (13, 1499877), (27, 722163), (39, 499959), (81, 240721), (117, 166653), (351, 55551), (1053, 18517)]