2788443

素因数分解:

$3^2\times 7^2\times {\mathrm{6323}}^1$

素因数の和:6343

約数の個数: 18

約数和(自身を含む): 4686084

約数和(自身を除く): 1897641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 6323, 18969, 44261, 56907, 132783, 309827, 398349, 929481, 2788443]

約数ペア:

[(1, 2788443), (3, 929481), (7, 398349), (9, 309827), (21, 132783), (49, 56907), (63, 44261), (147, 18969), (441, 6323)]