21009274

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73459}}^1$

素因数の和:73485

約数の個数: 16

約数和(自身を含む): 37023840

約数和(自身を除く): 16014566

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 73459, 146918, 808049, 954967, 1616098, 1909934, 10504637, 21009274]

約数ペア:

[(1, 21009274), (2, 10504637), (11, 1909934), (13, 1616098), (22, 954967), (26, 808049), (143, 146918), (286, 73459)]