19117521

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{503}}^1$

素因数の和:653

約数の個数: 24

約数和(自身を含む): 28619136

約数和(自身を除く): 9501615

約数列:

[1, 3, 9, 41, 103, 123, 309, 369, 503, 927, 1509, 4223, 4527, 12669, 20623, 38007, 51809, 61869, 155427, 185607, 466281, 2124169, 6372507, 19117521]

約数ペア:

[(1, 19117521), (3, 6372507), (9, 2124169), (41, 466281), (103, 185607), (123, 155427), (309, 61869), (369, 51809), (503, 38007), (927, 20623), (1509, 12669), (4223, 4527)]