891963

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:199

約数の個数: 24

約数和(自身を含む): 1397760

約数和(自身を除く): 505797

約数列:

[1, 3, 9, 23, 31, 69, 93, 139, 207, 279, 417, 713, 1251, 2139, 3197, 4309, 6417, 9591, 12927, 28773, 38781, 99107, 297321, 891963]

約数ペア:

[(1, 891963), (3, 297321), (9, 99107), (23, 38781), (31, 28773), (69, 12927), (93, 9591), (139, 6417), (207, 4309), (279, 3197), (417, 2139), (713, 1251)]