28771869

素因数分解:

$3^1\times 7^3\times {\mathrm{27961}}^1$

素因数の和:27985

約数の個数: 16

約数和(自身を含む): 44739200

約数和(自身を除く): 15967331

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 27961, 83883, 195727, 587181, 1370089, 4110267, 9590623, 28771869]

約数ペア:

[(1, 28771869), (3, 9590623), (7, 4110267), (21, 1370089), (49, 587181), (147, 195727), (343, 83883), (1029, 27961)]