20912804

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{461}}^1\times {\mathrm{1031}}^1$

素因数の和:1507

約数の個数: 24

約数和(自身を含む): 40049856

約数和(自身を除く): 19137052

約数列:

[1, 2, 4, 11, 22, 44, 461, 922, 1031, 1844, 2062, 4124, 5071, 10142, 11341, 20284, 22682, 45364, 475291, 950582, 1901164, 5228201, 10456402, 20912804]

約数ペア:

[(1, 20912804), (2, 10456402), (4, 5228201), (11, 1901164), (22, 950582), (44, 475291), (461, 45364), (922, 22682), (1031, 20284), (1844, 11341), (2062, 10142), (4124, 5071)]