21208334

素因数分解:

$2^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{4871}}^1$

素因数の和:5191

約数の個数: 16

約数和(自身を含む): 36481536

約数和(自身を除く): 15273202

約数列:

[1, 2, 7, 14, 311, 622, 2177, 4354, 4871, 9742, 34097, 68194, 1514881, 3029762, 10604167, 21208334]

約数ペア:

[(1, 21208334), (2, 10604167), (7, 3029762), (14, 1514881), (311, 68194), (622, 34097), (2177, 9742), (4354, 4871)]