21544820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97931}}^1$

素因数の和:97951

約数の個数: 24

約数和(自身を含む): 49357728

約数和(自身を除く): 27812908

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 97931, 195862, 391724, 489655, 979310, 1077241, 1958620, 2154482, 4308964, 5386205, 10772410, 21544820]

約数ペア:

[(1, 21544820), (2, 10772410), (4, 5386205), (5, 4308964), (10, 2154482), (11, 1958620), (20, 1077241), (22, 979310), (44, 489655), (55, 391724), (110, 195862), (220, 97931)]