19740539

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{4093}}^1$

素因数の和:4166

約数の個数: 16

約数和(自身を含む): 24760512

約数和(自身を除く): 5019973

約数列:

[1, 7, 13, 53, 91, 371, 689, 4093, 4823, 28651, 53209, 216929, 372463, 1518503, 2820077, 19740539]

約数ペア:

[(1, 19740539), (7, 2820077), (13, 1518503), (53, 372463), (91, 216929), (371, 53209), (689, 28651), (4093, 4823)]