20557724

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{7919}}^1$

素因数の和:7993

約数の個数: 24

約数和(自身を含む): 39916800

約数和(自身を除く): 19359076

約数列:

[1, 2, 4, 11, 22, 44, 59, 118, 236, 649, 1298, 2596, 7919, 15838, 31676, 87109, 174218, 348436, 467221, 934442, 1868884, 5139431, 10278862, 20557724]

約数ペア:

[(1, 20557724), (2, 10278862), (4, 5139431), (11, 1868884), (22, 934442), (44, 467221), (59, 348436), (118, 174218), (236, 87109), (649, 31676), (1298, 15838), (2596, 7919)]