21452938

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43427}}^1$

素因数の和:43461

約数の個数: 16

約数和(自身を含む): 36479520

約数和(自身を除く): 15026582

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 43427, 86854, 564551, 825113, 1129102, 1650226, 10726469, 21452938]

約数ペア:

[(1, 21452938), (2, 10726469), (13, 1650226), (19, 1129102), (26, 825113), (38, 564551), (247, 86854), (494, 43427)]