20744438

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{72533}}^1$

素因数の和:72559

約数の個数: 16

約数和(自身を含む): 36557136

約数和(自身を除く): 15812698

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 72533, 145066, 797863, 942929, 1595726, 1885858, 10372219, 20744438]

約数ペア:

[(1, 20744438), (2, 10372219), (11, 1885858), (13, 1595726), (22, 942929), (26, 797863), (143, 145066), (286, 72533)]