20156886

素因数分解:

$2^1\times 3^2\times {\mathrm{641}}^1\times {\mathrm{1747}}^1$

素因数の和:2396

約数の個数: 24

約数和(自身を含む): 43766424

約数和(自身を除く): 23609538

約数列:

[1, 2, 3, 6, 9, 18, 641, 1282, 1747, 1923, 3494, 3846, 5241, 5769, 10482, 11538, 15723, 31446, 1119827, 2239654, 3359481, 6718962, 10078443, 20156886]

約数ペア:

[(1, 20156886), (2, 10078443), (3, 6718962), (6, 3359481), (9, 2239654), (18, 1119827), (641, 31446), (1282, 15723), (1747, 11538), (1923, 10482), (3494, 5769), (3846, 5241)]