19431321

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{653}}^1$

素因数の和:785

約数の個数: 32

約数和(自身を含む): 32229120

約数和(自身を除く): 12797799

約数列:

[1, 3, 7, 13, 21, 39, 91, 109, 273, 327, 653, 763, 1417, 1959, 2289, 4251, 4571, 8489, 9919, 13713, 25467, 29757, 59423, 71177, 178269, 213531, 498239, 925301, 1494717, 2775903, 6477107, 19431321]

約数ペア:

[(1, 19431321), (3, 6477107), (7, 2775903), (13, 1494717), (21, 925301), (39, 498239), (91, 213531), (109, 178269), (273, 71177), (327, 59423), (653, 29757), (763, 25467), (1417, 13713), (1959, 9919), (2289, 8489), (4251, 4571)]