128818879

素因数分解:

$7^1\times {\mathrm{19}}^3\times {\mathrm{2683}}^1$

素因数の和:2747

約数の個数: 16

約数和(自身を含む): 155457280

約数和(自身を除く): 26638401

約数列:

[1, 7, 19, 133, 361, 2527, 2683, 6859, 18781, 48013, 50977, 356839, 968563, 6779941, 18402697, 128818879]

約数ペア:

[(1, 128818879), (7, 18402697), (19, 6779941), (133, 968563), (361, 356839), (2527, 50977), (2683, 48013), (6859, 18781)]