18839444

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^2$

素因数の和:121

約数の個数: 54

約数和(自身を含む): 38160990

約数和(自身を除く): 19321546

約数列:

[1, 2, 4, 13, 26, 29, 31, 52, 58, 62, 116, 124, 169, 338, 377, 403, 676, 754, 806, 899, 961, 1508, 1612, 1798, 1922, 3596, 3844, 4901, 5239, 9802, 10478, 11687, 12493, 19604, 20956, 23374, 24986, 27869, 46748, 49972, 55738, 111476, 151931, 162409, 303862, 324818, 362297, 607724, 649636, 724594, 1449188, 4709861, 9419722, 18839444]

約数ペア:

[(1, 18839444), (2, 9419722), (4, 4709861), (13, 1449188), (26, 724594), (29, 649636), (31, 607724), (52, 362297), (58, 324818), (62, 303862), (116, 162409), (124, 151931), (169, 111476), (338, 55738), (377, 49972), (403, 46748), (676, 27869), (754, 24986), (806, 23374), (899, 20956), (961, 19604), (1508, 12493), (1612, 11687), (1798, 10478), (1922, 9802), (3596, 5239), (3844, 4901)]