18864055

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1493}}^1$

素因数の和:1543

約数の個数: 24

約数和(自身を含む): 27322272

約数和(自身を除く): 8458217

約数列:

[1, 5, 7, 19, 35, 95, 133, 361, 665, 1493, 1805, 2527, 7465, 10451, 12635, 28367, 52255, 141835, 198569, 538973, 992845, 2694865, 3772811, 18864055]

約数ペア:

[(1, 18864055), (5, 3772811), (7, 2694865), (19, 992845), (35, 538973), (95, 198569), (133, 141835), (361, 52255), (665, 28367), (1493, 12635), (1805, 10451), (2527, 7465)]