19642203

素因数分解:

$3^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1009}}^1$

素因数の和:1128

約数の個数: 32

約数和(自身を含む): 33612800

約数和(自身を除く): 13970597

約数列:

[1, 3, 7, 9, 21, 27, 63, 103, 189, 309, 721, 927, 1009, 2163, 2781, 3027, 6489, 7063, 9081, 19467, 21189, 27243, 63567, 103927, 190701, 311781, 727489, 935343, 2182467, 2806029, 6547401, 19642203]

約数ペア:

[(1, 19642203), (3, 6547401), (7, 2806029), (9, 2182467), (21, 935343), (27, 727489), (63, 311781), (103, 190701), (189, 103927), (309, 63567), (721, 27243), (927, 21189), (1009, 19467), (2163, 9081), (2781, 7063), (3027, 6489)]