21216076

素因数分解:

$2^2\times 7^1\times {\mathrm{571}}^1\times {\mathrm{1327}}^1$

素因数の和:1909

約数の個数: 24

約数和(自身を含む): 42538496

約数和(自身を除く): 21322420

約数列:

[1, 2, 4, 7, 14, 28, 571, 1142, 1327, 2284, 2654, 3997, 5308, 7994, 9289, 15988, 18578, 37156, 757717, 1515434, 3030868, 5304019, 10608038, 21216076]

約数ペア:

[(1, 21216076), (2, 10608038), (4, 5304019), (7, 3030868), (14, 1515434), (28, 757717), (571, 37156), (1142, 18578), (1327, 15988), (2284, 9289), (2654, 7994), (3997, 5308)]