20620909

素因数分解:

${\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{257}}^1$

素因数の和:420

約数の個数: 16

約数和(自身を含む): 22538880

約数和(自身を除く): 1917971

約数列:

[1, 19, 41, 103, 257, 779, 1957, 4223, 4883, 10537, 26471, 80237, 200203, 502949, 1085311, 20620909]

約数ペア:

[(1, 20620909), (19, 1085311), (41, 502949), (103, 200203), (257, 80237), (779, 26471), (1957, 10537), (4223, 4883)]