21807772

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{33863}}^1$

素因数の和:33897

約数の個数: 24

約数和(自身を含む): 45513216

約数和(自身を除く): 23705444

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 33863, 67726, 135452, 237041, 474082, 778849, 948164, 1557698, 3115396, 5451943, 10903886, 21807772]

約数ペア:

[(1, 21807772), (2, 10903886), (4, 5451943), (7, 3115396), (14, 1557698), (23, 948164), (28, 778849), (46, 474082), (92, 237041), (161, 135452), (322, 67726), (644, 33863)]