18578289

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{1153}}^1$

素因数の和:1328

約数の個数: 16

約数和(自身を含む): 25591104

約数和(自身を除く): 7012815

約数列:

[1, 3, 41, 123, 131, 393, 1153, 3459, 5371, 16113, 47273, 141819, 151043, 453129, 6192763, 18578289]

約数ペア:

[(1, 18578289), (3, 6192763), (41, 453129), (123, 151043), (131, 141819), (393, 47273), (1153, 16113), (3459, 5371)]