21361604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{15661}}^1$

素因数の和:15707

約数の個数: 24

約数和(自身を含む): 42099456

約数和(自身を除く): 20737852

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 341, 682, 1364, 15661, 31322, 62644, 172271, 344542, 485491, 689084, 970982, 1941964, 5340401, 10680802, 21361604]

約数ペア:

[(1, 21361604), (2, 10680802), (4, 5340401), (11, 1941964), (22, 970982), (31, 689084), (44, 485491), (62, 344542), (124, 172271), (341, 62644), (682, 31322), (1364, 15661)]