18467981

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{727}}^1$

素因数の和:944

約数の個数: 16

約数和(自身を含む): 22364160

約数和(自身を除く): 3896179

約数列:

[1, 7, 19, 133, 191, 727, 1337, 3629, 5089, 13813, 25403, 96691, 138857, 971999, 2638283, 18467981]

約数ペア:

[(1, 18467981), (7, 2638283), (19, 971999), (133, 138857), (191, 96691), (727, 25403), (1337, 13813), (3629, 5089)]