212442881

素因数分解:

$7^4\times {\mathrm{23}}^1\times {\mathrm{3847}}^1$

素因数の和:3898

約数の個数: 20

約数和(自身を含む): 258677952

約数和(自身を除く): 46235071

約数列:

[1, 7, 23, 49, 161, 343, 1127, 2401, 3847, 7889, 26929, 55223, 88481, 188503, 619367, 1319521, 4335569, 9236647, 30348983, 212442881]

約数ペア:

[(1, 212442881), (7, 30348983), (23, 9236647), (49, 4335569), (161, 1319521), (343, 619367), (1127, 188503), (2401, 88481), (3847, 55223), (7889, 26929)]