28971553

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{337}}^1\times {\mathrm{389}}^1$

素因数の和:756

約数の個数: 16

約数和(自身を含む): 33218640

約数和(自身を除く): 4247087

約数列:

[1, 13, 17, 221, 337, 389, 4381, 5057, 5729, 6613, 74477, 85969, 131093, 1704209, 2228581, 28971553]

約数ペア:

[(1, 28971553), (13, 2228581), (17, 1704209), (221, 131093), (337, 85969), (389, 74477), (4381, 6613), (5057, 5729)]