21090012

素因数分解:

$2^2\times 3^1\times {\mathrm{101}}^1\times {\mathrm{17401}}^1$

素因数の和:17509

約数の個数: 24

約数和(自身を含む): 49700112

約数和(自身を除く): 28610100

約数列:

[1, 2, 3, 4, 6, 12, 101, 202, 303, 404, 606, 1212, 17401, 34802, 52203, 69604, 104406, 208812, 1757501, 3515002, 5272503, 7030004, 10545006, 21090012]

約数ペア:

[(1, 21090012), (2, 10545006), (3, 7030004), (4, 5272503), (6, 3515002), (12, 1757501), (101, 208812), (202, 104406), (303, 69604), (404, 52203), (606, 34802), (1212, 17401)]