20769777

素因数分解:

$3^4\times 7^2\times {\mathrm{5233}}^1$

素因数の和:5259

約数の個数: 30

約数和(自身を含む): 36098898

約数和(自身を除く): 15329121

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 5233, 15699, 36631, 47097, 109893, 141291, 256417, 329679, 423873, 769251, 989037, 2307753, 2967111, 6923259, 20769777]

約数ペア:

[(1, 20769777), (3, 6923259), (7, 2967111), (9, 2307753), (21, 989037), (27, 769251), (49, 423873), (63, 329679), (81, 256417), (147, 141291), (189, 109893), (441, 47097), (567, 36631), (1323, 15699), (3969, 5233)]