18003879

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{503}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 26968032

約数和(自身を除く): 8964153

約数列:

[1, 3, 9, 41, 97, 123, 291, 369, 503, 873, 1509, 3977, 4527, 11931, 20623, 35793, 48791, 61869, 146373, 185607, 439119, 2000431, 6001293, 18003879]

約数ペア:

[(1, 18003879), (3, 6001293), (9, 2000431), (41, 439119), (97, 185607), (123, 146373), (291, 61869), (369, 48791), (503, 35793), (873, 20623), (1509, 11931), (3977, 4527)]