28204293

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{3671}}^1$

素因数の和:3884

約数の個数: 16

約数和(自身を含む): 40715136

約数和(自身を除く): 12510843

約数列:

[1, 3, 13, 39, 197, 591, 2561, 3671, 7683, 11013, 47723, 143169, 723187, 2169561, 9401431, 28204293]

約数ペア:

[(1, 28204293), (3, 9401431), (13, 2169561), (39, 723187), (197, 143169), (591, 47723), (2561, 11013), (3671, 7683)]