19971343

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{751}}^1$

素因数の和:918

約数の個数: 16

約数和(自身を含む): 23823360

約数和(自身を除く): 3852017

約数列:

[1, 7, 29, 131, 203, 751, 917, 3799, 5257, 21779, 26593, 98381, 152453, 688667, 2853049, 19971343]

約数ペア:

[(1, 19971343), (7, 2853049), (29, 688667), (131, 152453), (203, 98381), (751, 26593), (917, 21779), (3799, 5257)]