20799805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4507}}^1$

素因数の和:4596

約数の個数: 16

約数和(自身を含む): 27264384

約数和(自身を除く): 6464579

約数列:

[1, 5, 13, 65, 71, 355, 923, 4507, 4615, 22535, 58591, 292955, 319997, 1599985, 4159961, 20799805]

約数ペア:

[(1, 20799805), (5, 4159961), (13, 1599985), (65, 319997), (71, 292955), (355, 58591), (923, 22535), (4507, 4615)]