221040511

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{13147}}^1$

素因数の和:13230

約数の個数: 16

約数和(自身を含む): 249917184

約数和(自身を除く): 28876673

約数列:

[1, 17, 23, 43, 391, 731, 989, 13147, 16813, 223499, 302381, 565321, 5140477, 9610457, 13002383, 221040511]

約数ペア:

[(1, 221040511), (17, 13002383), (23, 9610457), (43, 5140477), (391, 565321), (731, 302381), (989, 223499), (13147, 16813)]