18117431

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:430

約数の個数: 16

約数和(自身を含む): 19958400

約数和(自身を除く): 1840969

約数列:

[1, 19, 29, 131, 251, 551, 2489, 3799, 4769, 7279, 32881, 72181, 138301, 624739, 953549, 18117431]

約数ペア:

[(1, 18117431), (19, 953549), (29, 624739), (131, 138301), (251, 72181), (551, 32881), (2489, 7279), (3799, 4769)]