20837168

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:306

約数の個数: 60

約数和(自身を含む): 45517920

約数和(自身を除く): 24680752

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 47, 88, 94, 121, 176, 188, 229, 242, 376, 458, 484, 517, 752, 916, 968, 1034, 1832, 1936, 2068, 2519, 3664, 4136, 5038, 5687, 8272, 10076, 10763, 11374, 20152, 21526, 22748, 27709, 40304, 43052, 45496, 55418, 86104, 90992, 110836, 118393, 172208, 221672, 236786, 443344, 473572, 947144, 1302323, 1894288, 2604646, 5209292, 10418584, 20837168]

約数ペア:

[(1, 20837168), (2, 10418584), (4, 5209292), (8, 2604646), (11, 1894288), (16, 1302323), (22, 947144), (44, 473572), (47, 443344), (88, 236786), (94, 221672), (121, 172208), (176, 118393), (188, 110836), (229, 90992), (242, 86104), (376, 55418), (458, 45496), (484, 43052), (517, 40304), (752, 27709), (916, 22748), (968, 21526), (1034, 20152), (1832, 11374), (1936, 10763), (2068, 10076), (2519, 8272), (3664, 5687), (4136, 5038)]