20994292

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{4919}}^1$

素因数の和:5031

約数の個数: 24

約数和(自身を含む): 40501440

約数和(自身を除く): 19507148

約数列:

[1, 2, 4, 11, 22, 44, 97, 194, 388, 1067, 2134, 4268, 4919, 9838, 19676, 54109, 108218, 216436, 477143, 954286, 1908572, 5248573, 10497146, 20994292]

約数ペア:

[(1, 20994292), (2, 10497146), (4, 5248573), (11, 1908572), (22, 954286), (44, 477143), (97, 216436), (194, 108218), (388, 54109), (1067, 19676), (2134, 9838), (4268, 4919)]