2788281

素因数分解:

$3^2\times {\mathrm{59}}^2\times {\mathrm{89}}^1$

素因数の和:213

約数の個数: 18

約数和(自身を含む): 4142970

約数和(自身を除く): 1354689

約数列:

[1, 3, 9, 59, 89, 177, 267, 531, 801, 3481, 5251, 10443, 15753, 31329, 47259, 309809, 929427, 2788281]

約数ペア:

[(1, 2788281), (3, 929427), (9, 309809), (59, 47259), (89, 31329), (177, 15753), (267, 10443), (531, 5251), (801, 3481)]