21281448

素因数分解:

$2^3\times 3^1\times {\mathrm{103}}^1\times {\mathrm{8609}}^1$

素因数の和:8721

約数の個数: 32

約数和(自身を含む): 53726400

約数和(自身を除く): 32444952

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 103, 206, 309, 412, 618, 824, 1236, 2472, 8609, 17218, 25827, 34436, 51654, 68872, 103308, 206616, 886727, 1773454, 2660181, 3546908, 5320362, 7093816, 10640724, 21281448]

約数ペア:

[(1, 21281448), (2, 10640724), (3, 7093816), (4, 5320362), (6, 3546908), (8, 2660181), (12, 1773454), (24, 886727), (103, 206616), (206, 103308), (309, 68872), (412, 51654), (618, 34436), (824, 25827), (1236, 17218), (2472, 8609)]