20772284

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{2207}}^1$

素因数の和:2405

約数の個数: 24

約数和(自身を含む): 39381888

約数和(自身を除く): 18609604

約数列:

[1, 2, 4, 13, 26, 52, 181, 362, 724, 2207, 2353, 4414, 4706, 8828, 9412, 28691, 57382, 114764, 399467, 798934, 1597868, 5193071, 10386142, 20772284]

約数ペア:

[(1, 20772284), (2, 10386142), (4, 5193071), (13, 1597868), (26, 798934), (52, 399467), (181, 114764), (362, 57382), (724, 28691), (2207, 9412), (2353, 8828), (4414, 4706)]