657987

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:298

約数の個数: 16

約数和(自身を含む): 970752

約数和(自身を除く): 312765

約数列:

[1, 3, 11, 33, 127, 157, 381, 471, 1397, 1727, 4191, 5181, 19939, 59817, 219329, 657987]

約数ペア:

[(1, 657987), (3, 219329), (11, 59817), (33, 19939), (127, 5181), (157, 4191), (381, 1727), (471, 1397)]