28504749

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{541}}^1$

素因数の和:757

約数の個数: 32

約数和(自身を含む): 47106304

約数和(自身を除く): 18601555

約数列:

[1, 3, 7, 13, 21, 39, 91, 193, 273, 541, 579, 1351, 1623, 2509, 3787, 4053, 7033, 7527, 11361, 17563, 21099, 49231, 52689, 104413, 147693, 313239, 730891, 1357369, 2192673, 4072107, 9501583, 28504749]

約数ペア:

[(1, 28504749), (3, 9501583), (7, 4072107), (13, 2192673), (21, 1357369), (39, 730891), (91, 313239), (193, 147693), (273, 104413), (541, 52689), (579, 49231), (1351, 21099), (1623, 17563), (2509, 11361), (3787, 7527), (4053, 7033)]