21448778

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{2017}}^1$

素因数の和:2441

約数の個数: 16

約数和(自身を含む): 34749960

約数和(自身を除く): 13301182

約数列:

[1, 2, 13, 26, 409, 818, 2017, 4034, 5317, 10634, 26221, 52442, 824953, 1649906, 10724389, 21448778]

約数ペア:

[(1, 21448778), (2, 10724389), (13, 1649906), (26, 824953), (409, 52442), (818, 26221), (2017, 10634), (4034, 5317)]