19162381

素因数分解:

$7^4\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:398

約数の個数: 20

約数和(自身を含む): 23393952

約数和(自身を除く): 4231571

約数列:

[1, 7, 23, 49, 161, 343, 347, 1127, 2401, 2429, 7889, 7981, 17003, 55223, 55867, 119021, 391069, 833147, 2737483, 19162381]

約数ペア:

[(1, 19162381), (7, 2737483), (23, 833147), (49, 391069), (161, 119021), (343, 55867), (347, 55223), (1127, 17003), (2401, 7981), (2429, 7889)]