18286219

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{2143}}^1$

素因数の和:2226

約数の個数: 16

約数和(自身を含む): 22228992

約数和(自身を除く): 3942773

約数列:

[1, 7, 23, 53, 161, 371, 1219, 2143, 8533, 15001, 49289, 113579, 345023, 795053, 2612317, 18286219]

約数ペア:

[(1, 18286219), (7, 2612317), (23, 795053), (53, 345023), (161, 113579), (371, 49289), (1219, 15001), (2143, 8533)]