20988778

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{10463}}^1$

素因数の和:10541

約数の個数: 16

約数和(自身を含む): 33903360

約数和(自身を除く): 12914582

約数列:

[1, 2, 17, 34, 59, 118, 1003, 2006, 10463, 20926, 177871, 355742, 617317, 1234634, 10494389, 20988778]

約数ペア:

[(1, 20988778), (2, 10494389), (17, 1234634), (34, 617317), (59, 355742), (118, 177871), (1003, 20926), (2006, 10463)]