19807315

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{2417}}^1$

素因数の和:2582

約数の個数: 16

約数和(自身を含む): 26114400

約数和(自身を除く): 6307085

約数列:

[1, 5, 11, 55, 149, 745, 1639, 2417, 8195, 12085, 26587, 132935, 360133, 1800665, 3961463, 19807315]

約数ペア:

[(1, 19807315), (5, 3961463), (11, 1800665), (55, 360133), (149, 132935), (745, 26587), (1639, 12085), (2417, 8195)]