42781442

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{4999}}^1$

素因数の和:5401

約数の個数: 16

約数和(自身を含む): 70200000

約数和(自身を除く): 27418558

約数列:

[1, 2, 11, 22, 389, 778, 4279, 4999, 8558, 9998, 54989, 109978, 1944611, 3889222, 21390721, 42781442]

約数ペア:

[(1, 42781442), (2, 21390721), (11, 3889222), (22, 1944611), (389, 109978), (778, 54989), (4279, 9998), (4999, 8558)]