20748068

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{1973}}^1$

素因数の和:2227

約数の個数: 24

約数和(自身を含む): 39795840

約数和(自身を除く): 19047772

約数列:

[1, 2, 4, 11, 22, 44, 239, 478, 956, 1973, 2629, 3946, 5258, 7892, 10516, 21703, 43406, 86812, 471547, 943094, 1886188, 5187017, 10374034, 20748068]

約数ペア:

[(1, 20748068), (2, 10374034), (4, 5187017), (11, 1886188), (22, 943094), (44, 471547), (239, 86812), (478, 43406), (956, 21703), (1973, 10516), (2629, 7892), (3946, 5258)]