21396976

素因数分解:

$2^4\times {\mathrm{523}}^1\times {\mathrm{2557}}^1$

素因数の和:3088

約数の個数: 20

約数和(自身を含む): 41552152

約数和(自身を除く): 20155176

約数列:

[1, 2, 4, 8, 16, 523, 1046, 2092, 2557, 4184, 5114, 8368, 10228, 20456, 40912, 1337311, 2674622, 5349244, 10698488, 21396976]

約数ペア:

[(1, 21396976), (2, 10698488), (4, 5349244), (8, 2674622), (16, 1337311), (523, 40912), (1046, 20456), (2092, 10228), (2557, 8368), (4184, 5114)]