20088719

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1153}}^1$

素因数の和:1310

約数の個数: 16

約数和(自身を含む): 24372480

約数和(自身を除く): 4283761

約数列:

[1, 7, 19, 131, 133, 917, 1153, 2489, 8071, 17423, 21907, 151043, 153349, 1057301, 2869817, 20088719]

約数ペア:

[(1, 20088719), (7, 2869817), (19, 1057301), (131, 153349), (133, 151043), (917, 21907), (1153, 17423), (2489, 8071)]