18515329

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{431}}^1$

素因数の和:493

約数の個数: 24

約数和(自身を含む): 23701248

約数和(自身を除く): 5185919

約数列:

[1, 7, 17, 19, 119, 133, 323, 361, 431, 2261, 2527, 3017, 6137, 7327, 8189, 42959, 51289, 57323, 139213, 155591, 974491, 1089137, 2645047, 18515329]

約数ペア:

[(1, 18515329), (7, 2645047), (17, 1089137), (19, 974491), (119, 155591), (133, 139213), (323, 57323), (361, 51289), (431, 42959), (2261, 8189), (2527, 7327), (3017, 6137)]