19487831

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{197}}^1$

素因数の和:271

約数の個数: 24

約数和(自身を含む): 23650704

約数和(自身を除く): 4162873

約数列:

[1, 11, 17, 23, 187, 197, 253, 391, 529, 2167, 3349, 4301, 4531, 5819, 8993, 36839, 49841, 77027, 98923, 104213, 847297, 1146343, 1771621, 19487831]

約数ペア:

[(1, 19487831), (11, 1771621), (17, 1146343), (23, 847297), (187, 104213), (197, 98923), (253, 77027), (391, 49841), (529, 36839), (2167, 8993), (3349, 5819), (4301, 4531)]