19988679

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{6737}}^1$

素因数の和:6806

約数の個数: 16

約数和(自身を含む): 28461312

約数和(自身を除く): 8472633

約数列:

[1, 3, 23, 43, 69, 129, 989, 2967, 6737, 20211, 154951, 289691, 464853, 869073, 6662893, 19988679]

約数ペア:

[(1, 19988679), (3, 6662893), (23, 869073), (43, 464853), (69, 289691), (129, 154951), (989, 20211), (2967, 6737)]