21896870

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53407}}^1$

素因数の和:53455

約数の個数: 16

約数和(自身を含む): 40376448

約数和(自身を除く): 18479578

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 53407, 106814, 267035, 534070, 2189687, 4379374, 10948435, 21896870]

約数ペア:

[(1, 21896870), (2, 10948435), (5, 4379374), (10, 2189687), (41, 534070), (82, 267035), (205, 106814), (410, 53407)]