21740836

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{1109}}^1$

素因数の和:1168

約数の個数: 36

約数和(自身を含む): 42657300

約数和(自身を除く): 20916464

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 116, 169, 338, 377, 676, 754, 1109, 1508, 2218, 4436, 4901, 9802, 14417, 19604, 28834, 32161, 57668, 64322, 128644, 187421, 374842, 418093, 749684, 836186, 1672372, 5435209, 10870418, 21740836]

約数ペア:

[(1, 21740836), (2, 10870418), (4, 5435209), (13, 1672372), (26, 836186), (29, 749684), (52, 418093), (58, 374842), (116, 187421), (169, 128644), (338, 64322), (377, 57668), (676, 32161), (754, 28834), (1109, 19604), (1508, 14417), (2218, 9802), (4436, 4901)]