42647997

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{15991}}^1$

素因数の和:16128

約数の個数: 16

約数和(自身を含む): 65503232

約数和(自身を除く): 22855235

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 15991, 47973, 111937, 335811, 2030857, 6092571, 14215999, 42647997]

約数ペア:

[(1, 42647997), (3, 14215999), (7, 6092571), (21, 2030857), (127, 335811), (381, 111937), (889, 47973), (2667, 15991)]