28784833

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{389}}^1$

素因数の和:469

約数の個数: 24

約数和(自身を含む): 37177920

約数和(自身を除く): 8393087

約数列:

[1, 7, 11, 31, 77, 217, 341, 389, 961, 2387, 2723, 4279, 6727, 10571, 12059, 29953, 73997, 84413, 132649, 373829, 928543, 2616803, 4112119, 28784833]

約数ペア:

[(1, 28784833), (7, 4112119), (11, 2616803), (31, 928543), (77, 373829), (217, 132649), (341, 84413), (389, 73997), (961, 29953), (2387, 12059), (2723, 10571), (4279, 6727)]