18127978

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{173}}^1\times {\mathrm{433}}^1$

素因数の和:630

約数の個数: 24

約数和(自身を含む): 30130884

約数和(自身を除く): 12002906

約数列:

[1, 2, 11, 22, 121, 173, 242, 346, 433, 866, 1903, 3806, 4763, 9526, 20933, 41866, 52393, 74909, 104786, 149818, 823999, 1647998, 9063989, 18127978]

約数ペア:

[(1, 18127978), (2, 9063989), (11, 1647998), (22, 823999), (121, 149818), (173, 104786), (242, 74909), (346, 52393), (433, 41866), (866, 20933), (1903, 9526), (3806, 4763)]