20865328

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1151}}^1$

素因数の和:1273

約数の個数: 40

約数和(自身を含む): 44568576

約数和(自身を除く): 23703248

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 103, 176, 206, 412, 824, 1133, 1151, 1648, 2266, 2302, 4532, 4604, 9064, 9208, 12661, 18128, 18416, 25322, 50644, 101288, 118553, 202576, 237106, 474212, 948424, 1304083, 1896848, 2608166, 5216332, 10432664, 20865328]

約数ペア:

[(1, 20865328), (2, 10432664), (4, 5216332), (8, 2608166), (11, 1896848), (16, 1304083), (22, 948424), (44, 474212), (88, 237106), (103, 202576), (176, 118553), (206, 101288), (412, 50644), (824, 25322), (1133, 18416), (1151, 18128), (1648, 12661), (2266, 9208), (2302, 9064), (4532, 4604)]