21869195

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{997}}^1$

素因数の和:1150

約数の個数: 16

約数和(自身を含む): 27161568

約数和(自身を除く): 5292373

約数列:

[1, 5, 41, 107, 205, 535, 997, 4387, 4985, 21935, 40877, 106679, 204385, 533395, 4373839, 21869195]

約数ペア:

[(1, 21869195), (5, 4373839), (41, 533395), (107, 204385), (205, 106679), (535, 40877), (997, 21935), (4387, 4985)]