20509004

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2767}}^1$

素因数の和:2897

約数の個数: 24

約数和(自身を含む): 38364480

約数和(自身を除く): 17855476

約数列:

[1, 2, 4, 17, 34, 68, 109, 218, 436, 1853, 2767, 3706, 5534, 7412, 11068, 47039, 94078, 188156, 301603, 603206, 1206412, 5127251, 10254502, 20509004]

約数ペア:

[(1, 20509004), (2, 10254502), (4, 5127251), (17, 1206412), (34, 603206), (68, 301603), (109, 188156), (218, 94078), (436, 47039), (1853, 11068), (2767, 7412), (3706, 5534)]