21556563

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{33113}}^1$

素因数の和:33154

約数の個数: 16

約数和(自身を含む): 33908736

約数和(自身を除く): 12352173

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 33113, 99339, 231791, 695373, 1026503, 3079509, 7185521, 21556563]

約数ペア:

[(1, 21556563), (3, 7185521), (7, 3079509), (21, 1026503), (31, 695373), (93, 231791), (217, 99339), (651, 33113)]