21564892

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{1493}}^1$

素因数の和:1677

約数の個数: 24

約数和(自身を含む): 39656736

約数和(自身を除く): 18091844

約数列:

[1, 2, 4, 23, 46, 92, 157, 314, 628, 1493, 2986, 3611, 5972, 7222, 14444, 34339, 68678, 137356, 234401, 468802, 937604, 5391223, 10782446, 21564892]

約数ペア:

[(1, 21564892), (2, 10782446), (4, 5391223), (23, 937604), (46, 468802), (92, 234401), (157, 137356), (314, 68678), (628, 34339), (1493, 14444), (2986, 7222), (3611, 5972)]