127811999

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1\times {\mathrm{1123}}^1$

素因数の和:1430

約数の個数: 16

約数和(自身を含む): 148907520

約数和(自身を除く): 21095521

約数列:

[1, 7, 71, 229, 497, 1123, 1603, 7861, 16259, 79733, 113813, 257167, 558131, 1800169, 18258857, 127811999]

約数ペア:

[(1, 127811999), (7, 18258857), (71, 1800169), (229, 558131), (497, 257167), (1123, 113813), (1603, 79733), (7861, 16259)]