3978639

素因数分解:

$3^5\times 7^1\times {\mathrm{2339}}^1$

素因数の和:2361

約数の個数: 24

約数和(自身を含む): 6814080

約数和(自身を除く): 2835441

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 2339, 7017, 16373, 21051, 49119, 63153, 147357, 189459, 442071, 568377, 1326213, 3978639]

約数ペア:

[(1, 3978639), (3, 1326213), (7, 568377), (9, 442071), (21, 189459), (27, 147357), (63, 63153), (81, 49119), (189, 21051), (243, 16373), (567, 7017), (1701, 2339)]