20643995

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{2017}}^1$

素因数の和:2134

約数の個数: 16

約数和(自身を含む): 26153280

約数和(自身を除く): 5509285

約数列:

[1, 5, 23, 89, 115, 445, 2017, 2047, 10085, 10235, 46391, 179513, 231955, 897565, 4128799, 20643995]

約数ペア:

[(1, 20643995), (5, 4128799), (23, 897565), (89, 231955), (115, 179513), (445, 46391), (2017, 10235), (2047, 10085)]