21783729

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{7417}}^1$

素因数の和:7520

約数の個数: 16

約数和(自身を含む): 32045760

約数和(自身を除く): 10262031

約数列:

[1, 3, 11, 33, 89, 267, 979, 2937, 7417, 22251, 81587, 244761, 660113, 1980339, 7261243, 21783729]

約数ペア:

[(1, 21783729), (3, 7261243), (11, 1980339), (33, 660113), (89, 244761), (267, 81587), (979, 22251), (2937, 7417)]