20808436

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{8923}}^1$

素因数の和:8991

約数の個数: 24

約数和(自身を含む): 40479264

約数和(自身を除く): 19670828

約数列:

[1, 2, 4, 11, 22, 44, 53, 106, 212, 583, 1166, 2332, 8923, 17846, 35692, 98153, 196306, 392612, 472919, 945838, 1891676, 5202109, 10404218, 20808436]

約数ペア:

[(1, 20808436), (2, 10404218), (4, 5202109), (11, 1891676), (22, 945838), (44, 472919), (53, 392612), (106, 196306), (212, 98153), (583, 35692), (1166, 17846), (2332, 8923)]