18218637

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{509}}^1$

素因数の和:653

約数の個数: 24

約数和(自身を含む): 27289080

約数和(自身を除く): 9070443

約数列:

[1, 3, 9, 41, 97, 123, 291, 369, 509, 873, 1527, 3977, 4581, 11931, 20869, 35793, 49373, 62607, 148119, 187821, 444357, 2024293, 6072879, 18218637]

約数ペア:

[(1, 18218637), (3, 6072879), (9, 2024293), (41, 444357), (97, 187821), (123, 148119), (291, 62607), (369, 49373), (509, 35793), (873, 20869), (1527, 11931), (3977, 4581)]