28288539

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{1091}}^1$

素因数の和:1207

約数の個数: 24

約数和(自身を含む): 42474432

約数和(自身を除く): 14185893

約数列:

[1, 3, 9, 43, 67, 129, 201, 387, 603, 1091, 2881, 3273, 8643, 9819, 25929, 46913, 73097, 140739, 219291, 422217, 657873, 3143171, 9429513, 28288539]

約数ペア:

[(1, 28288539), (3, 9429513), (9, 3143171), (43, 657873), (67, 422217), (129, 219291), (201, 140739), (387, 73097), (603, 46913), (1091, 25929), (2881, 9819), (3273, 8643)]