21566732

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 43593984

約数和(自身を除く): 22027252

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 101, 202, 211, 253, 404, 422, 506, 844, 1012, 1111, 2222, 2321, 2323, 4444, 4642, 4646, 4853, 9284, 9292, 9706, 19412, 21311, 25553, 42622, 51106, 53383, 85244, 102212, 106766, 213532, 234421, 468842, 490153, 937684, 980306, 1960612, 5391683, 10783366, 21566732]

約数ペア:

[(1, 21566732), (2, 10783366), (4, 5391683), (11, 1960612), (22, 980306), (23, 937684), (44, 490153), (46, 468842), (92, 234421), (101, 213532), (202, 106766), (211, 102212), (253, 85244), (404, 53383), (422, 51106), (506, 42622), (844, 25553), (1012, 21311), (1111, 19412), (2222, 9706), (2321, 9292), (2323, 9284), (4444, 4853), (4642, 4646)]