19678221

素因数分解:

$3^4\times {\mathrm{83}}^1\times {\mathrm{2927}}^1$

素因数の和:3022

約数の個数: 20

約数和(自身を含む): 29760192

約数和(自身を除く): 10081971

約数列:

[1, 3, 9, 27, 81, 83, 249, 747, 2241, 2927, 6723, 8781, 26343, 79029, 237087, 242941, 728823, 2186469, 6559407, 19678221]

約数ペア:

[(1, 19678221), (3, 6559407), (9, 2186469), (27, 728823), (81, 242941), (83, 237087), (249, 79029), (747, 26343), (2241, 8781), (2927, 6723)]