21308881

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{997}}^1$

素因数の和:1104

約数の個数: 16

約数和(自身を含む): 24431040

約数和(自身を除く): 3122159

約数列:

[1, 11, 29, 67, 319, 737, 997, 1943, 10967, 21373, 28913, 66799, 318043, 734789, 1937171, 21308881]

約数ペア:

[(1, 21308881), (11, 1937171), (29, 734789), (67, 318043), (319, 66799), (737, 28913), (997, 21373), (1943, 10967)]