19742195

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{11579}}^1$

素因数の和:11626

約数の個数: 16

約数和(自身を含む): 26680320

約数和(自身を除く): 6938125

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 11579, 57895, 127369, 358949, 636845, 1794745, 3948439, 19742195]

約数ペア:

[(1, 19742195), (5, 3948439), (11, 1794745), (31, 636845), (55, 358949), (155, 127369), (341, 57895), (1705, 11579)]