21104336

素因数分解:

$2^4\times {\mathrm{11}}^3\times {\mathrm{991}}^1$

素因数の和:1032

約数の個数: 40

約数和(自身を含む): 45020928

約数和(自身を除く): 23916592

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 121, 176, 242, 484, 968, 991, 1331, 1936, 1982, 2662, 3964, 5324, 7928, 10648, 10901, 15856, 21296, 21802, 43604, 87208, 119911, 174416, 239822, 479644, 959288, 1319021, 1918576, 2638042, 5276084, 10552168, 21104336]

約数ペア:

[(1, 21104336), (2, 10552168), (4, 5276084), (8, 2638042), (11, 1918576), (16, 1319021), (22, 959288), (44, 479644), (88, 239822), (121, 174416), (176, 119911), (242, 87208), (484, 43604), (968, 21802), (991, 21296), (1331, 15856), (1936, 10901), (1982, 10648), (2662, 7928), (3964, 5324)]