20471572

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6553}}^1$

素因数の和:6639

約数の個数: 24

約数和(自身を含む): 39638592

約数和(自身を除く): 19167020

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 6553, 13106, 26212, 72083, 144166, 288332, 465263, 930526, 1861052, 5117893, 10235786, 20471572]

約数ペア:

[(1, 20471572), (2, 10235786), (4, 5117893), (11, 1861052), (22, 930526), (44, 465263), (71, 288332), (142, 144166), (284, 72083), (781, 26212), (1562, 13106), (3124, 6553)]