20542148

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{193}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 41065920

約数和(自身を除く): 20523772

約数列:

[1, 2, 4, 11, 22, 41, 44, 59, 82, 118, 164, 193, 236, 386, 451, 649, 772, 902, 1298, 1804, 2123, 2419, 2596, 4246, 4838, 7913, 8492, 9676, 11387, 15826, 22774, 26609, 31652, 45548, 53218, 87043, 106436, 125257, 174086, 250514, 348172, 466867, 501028, 933734, 1867468, 5135537, 10271074, 20542148]

約数ペア:

[(1, 20542148), (2, 10271074), (4, 5135537), (11, 1867468), (22, 933734), (41, 501028), (44, 466867), (59, 348172), (82, 250514), (118, 174086), (164, 125257), (193, 106436), (236, 87043), (386, 53218), (451, 45548), (649, 31652), (772, 26609), (902, 22774), (1298, 15826), (1804, 11387), (2123, 9676), (2419, 8492), (2596, 7913), (4246, 4838)]