18744963

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{6997}}^1$

素因数の和:7066

約数の個数: 16

約数和(自身を含む): 26872320

約数和(自身を除く): 8127357

約数列:

[1, 3, 19, 47, 57, 141, 893, 2679, 6997, 20991, 132943, 328859, 398829, 986577, 6248321, 18744963]

約数ペア:

[(1, 18744963), (3, 6248321), (19, 986577), (47, 398829), (57, 328859), (141, 132943), (893, 20991), (2679, 6997)]