21604828

素因数分解:

$2^2\times 7^1\times {\mathrm{521}}^1\times {\mathrm{1481}}^1$

素因数の和:2013

約数の個数: 24

約数和(自身を含む): 43321824

約数和(自身を除く): 21716996

約数列:

[1, 2, 4, 7, 14, 28, 521, 1042, 1481, 2084, 2962, 3647, 5924, 7294, 10367, 14588, 20734, 41468, 771601, 1543202, 3086404, 5401207, 10802414, 21604828]

約数ペア:

[(1, 21604828), (2, 10802414), (4, 5401207), (7, 3086404), (14, 1543202), (28, 771601), (521, 41468), (1042, 20734), (1481, 14588), (2084, 10367), (2962, 7294), (3647, 5924)]