20920948

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^2$

素因数の和:256

約数の個数: 36

約数和(自身を含む): 40495140

約数和(自身を除く): 19574192

約数列:

[1, 2, 4, 17, 29, 34, 58, 68, 103, 116, 206, 412, 493, 986, 1751, 1972, 2987, 3502, 5974, 7004, 10609, 11948, 21218, 42436, 50779, 101558, 180353, 203116, 307661, 360706, 615322, 721412, 1230644, 5230237, 10460474, 20920948]

約数ペア:

[(1, 20920948), (2, 10460474), (4, 5230237), (17, 1230644), (29, 721412), (34, 615322), (58, 360706), (68, 307661), (103, 203116), (116, 180353), (206, 101558), (412, 50779), (493, 42436), (986, 21218), (1751, 11948), (1972, 10609), (2987, 7004), (3502, 5974)]