20156901

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{4789}}^1$

素因数の和:4876

約数の個数: 16

約数和(自身を含む): 28510080

約数和(自身を除く): 8353179

約数列:

[1, 3, 23, 61, 69, 183, 1403, 4209, 4789, 14367, 110147, 292129, 330441, 876387, 6718967, 20156901]

約数ペア:

[(1, 20156901), (3, 6718967), (23, 876387), (61, 330441), (69, 292129), (183, 110147), (1403, 14367), (4209, 4789)]