218555821

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^4\times {\mathrm{71}}^1$

素因数の和:174

約数の個数: 20

約数和(自身を含む): 252772704

約数和(自身を除く): 34216883

約数列:

[1, 11, 23, 71, 253, 529, 781, 1633, 5819, 12167, 17963, 37559, 133837, 279841, 413149, 863857, 3078251, 9502427, 19868711, 218555821]

約数ペア:

[(1, 218555821), (11, 19868711), (23, 9502427), (71, 3078251), (253, 863857), (529, 413149), (781, 279841), (1633, 133837), (5819, 37559), (12167, 17963)]