20211963

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{17231}}^1$

素因数の和:17274

約数の個数: 16

約数和(自身を含む): 29776896

約数和(自身を除く): 9564933

約数列:

[1, 3, 17, 23, 51, 69, 391, 1173, 17231, 51693, 292927, 396313, 878781, 1188939, 6737321, 20211963]

約数ペア:

[(1, 20211963), (3, 6737321), (17, 1188939), (23, 878781), (51, 396313), (69, 292927), (391, 51693), (1173, 17231)]