21404747

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{5737}}^1$

素因数の和:5798

約数の個数: 16

約数和(自身を含む): 26991552

約数和(自身を除く): 5586805

約数列:

[1, 7, 13, 41, 91, 287, 533, 3731, 5737, 40159, 74581, 235217, 522067, 1646519, 3057821, 21404747]

約数ペア:

[(1, 21404747), (7, 3057821), (13, 1646519), (41, 522067), (91, 235217), (287, 74581), (533, 40159), (3731, 5737)]