21371669

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4969}}^1$

素因数の和:5020

約数の個数: 16

約数和(自身を含む): 25764480

約数和(自身を除く): 4392811

約数列:

[1, 11, 17, 23, 187, 253, 391, 4301, 4969, 54659, 84473, 114287, 929203, 1257157, 1942879, 21371669]

約数ペア:

[(1, 21371669), (11, 1942879), (17, 1257157), (23, 929203), (187, 114287), (253, 84473), (391, 54659), (4301, 4969)]