21011903

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1567}}^1$

素因数の和:1654

約数の個数: 16

約数和(自身を含む): 24385536

約数和(自身を除く): 3373633

約数列:

[1, 11, 23, 53, 253, 583, 1219, 1567, 13409, 17237, 36041, 83051, 396451, 913561, 1910173, 21011903]

約数ペア:

[(1, 21011903), (11, 1910173), (23, 913561), (53, 396451), (253, 83051), (583, 36041), (1219, 17237), (1567, 13409)]