18971095

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{157}}^1$

素因数の和:212

約数の個数: 32

約数和(自身を含む): 27074880

約数和(自身を除く): 8103785

約数列:

[1, 5, 11, 13, 55, 65, 143, 157, 169, 715, 785, 845, 1727, 1859, 2041, 2197, 8635, 9295, 10205, 10985, 22451, 24167, 26533, 112255, 120835, 132665, 291863, 344929, 1459315, 1724645, 3794219, 18971095]

約数ペア:

[(1, 18971095), (5, 3794219), (11, 1724645), (13, 1459315), (55, 344929), (65, 291863), (143, 132665), (157, 120835), (169, 112255), (715, 26533), (785, 24167), (845, 22451), (1727, 10985), (1859, 10205), (2041, 9295), (2197, 8635)]