21087004

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{5851}}^1$

素因数の和:5925

約数の個数: 24

約数和(自身を含む): 39817008

約数和(自身を除く): 18730004

約数列:

[1, 2, 4, 17, 34, 53, 68, 106, 212, 901, 1802, 3604, 5851, 11702, 23404, 99467, 198934, 310103, 397868, 620206, 1240412, 5271751, 10543502, 21087004]

約数ペア:

[(1, 21087004), (2, 10543502), (4, 5271751), (17, 1240412), (34, 620206), (53, 397868), (68, 310103), (106, 198934), (212, 99467), (901, 23404), (1802, 11702), (3604, 5851)]