19311687

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{359}}^1$

素因数の和:547

約数の個数: 24

約数和(自身を含む): 28828800

約数和(自身を除く): 9517113

約数列:

[1, 3, 9, 43, 129, 139, 359, 387, 417, 1077, 1251, 3231, 5977, 15437, 17931, 46311, 49901, 53793, 138933, 149703, 449109, 2145743, 6437229, 19311687]

約数ペア:

[(1, 19311687), (3, 6437229), (9, 2145743), (43, 449109), (129, 149703), (139, 138933), (359, 53793), (387, 49901), (417, 46311), (1077, 17931), (1251, 15437), (3231, 5977)]