18993303

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2927}}^1$

素因数の和:3043

約数の個数: 24

約数和(自身を含む): 31669248

約数和(自身を除く): 12675945

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 2927, 6489, 8781, 20489, 26343, 61467, 184401, 301481, 904443, 2110367, 2713329, 6331101, 18993303]

約数ペア:

[(1, 18993303), (3, 6331101), (7, 2713329), (9, 2110367), (21, 904443), (63, 301481), (103, 184401), (309, 61467), (721, 26343), (927, 20489), (2163, 8781), (2927, 6489)]