20719256

素因数分解:

$2^3\times {\mathrm{163}}^1\times {\mathrm{15889}}^1$

素因数の和:16058

約数の個数: 16

約数和(自身を含む): 39089400

約数和(自身を除く): 18370144

約数列:

[1, 2, 4, 8, 163, 326, 652, 1304, 15889, 31778, 63556, 127112, 2589907, 5179814, 10359628, 20719256]

約数ペア:

[(1, 20719256), (2, 10359628), (4, 5179814), (8, 2589907), (163, 127112), (326, 63556), (652, 31778), (1304, 15889)]