21077686

素因数分解:

$2^1\times 7^1\times {\mathrm{809}}^1\times {\mathrm{1861}}^1$

素因数の和:2679

約数の個数: 16

約数和(自身を含む): 36197280

約数和(自身を除く): 15119594

約数列:

[1, 2, 7, 14, 809, 1618, 1861, 3722, 5663, 11326, 13027, 26054, 1505549, 3011098, 10538843, 21077686]

約数ペア:

[(1, 21077686), (2, 10538843), (7, 3011098), (14, 1505549), (809, 26054), (1618, 13027), (1861, 11326), (3722, 5663)]