19647265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{1693}}^1$

素因数の和:1920

約数の個数: 16

約数和(自身を含む): 25857216

約数和(自身を除く): 6209951

約数列:

[1, 5, 11, 55, 211, 1055, 1693, 2321, 8465, 11605, 18623, 93115, 357223, 1786115, 3929453, 19647265]

約数ペア:

[(1, 19647265), (5, 3929453), (11, 1786115), (55, 357223), (211, 93115), (1055, 18623), (1693, 11605), (2321, 8465)]