19777893

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{1103}}^1$

素因数の和:1288

約数の個数: 16

約数和(自身を含む): 27202560

約数和(自身を除く): 7424667

約数列:

[1, 3, 43, 129, 139, 417, 1103, 3309, 5977, 17931, 47429, 142287, 153317, 459951, 6592631, 19777893]

約数ペア:

[(1, 19777893), (3, 6592631), (43, 459951), (129, 153317), (139, 142287), (417, 47429), (1103, 17931), (3309, 5977)]