19553211

素因数分解:

$3^3\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:280

約数の個数: 32

約数和(自身を含む): 29952000

約数和(自身を除く): 10398789

約数列:

[1, 3, 9, 27, 79, 89, 103, 237, 267, 309, 711, 801, 927, 2133, 2403, 2781, 7031, 8137, 9167, 21093, 24411, 27501, 63279, 73233, 82503, 189837, 219699, 247509, 724193, 2172579, 6517737, 19553211]

約数ペア:

[(1, 19553211), (3, 6517737), (9, 2172579), (27, 724193), (79, 247509), (89, 219699), (103, 189837), (237, 82503), (267, 73233), (309, 63279), (711, 27501), (801, 24411), (927, 21093), (2133, 9167), (2403, 8137), (2781, 7031)]