20628916

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{66977}}^1$

素因数の和:66999

約数の個数: 24

約数和(自身を含む): 45009216

約数和(自身を除く): 24380300

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 66977, 133954, 267908, 468839, 736747, 937678, 1473494, 1875356, 2946988, 5157229, 10314458, 20628916]

約数ペア:

[(1, 20628916), (2, 10314458), (4, 5157229), (7, 2946988), (11, 1875356), (14, 1473494), (22, 937678), (28, 736747), (44, 468839), (77, 267908), (154, 133954), (308, 66977)]