21204128

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1021}}^1$

素因数の和:1101

約数の個数: 48

約数和(自身を含む): 46357920

約数和(自身を除く): 25153792

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 59, 88, 118, 176, 236, 352, 472, 649, 944, 1021, 1298, 1888, 2042, 2596, 4084, 5192, 8168, 10384, 11231, 16336, 20768, 22462, 32672, 44924, 60239, 89848, 120478, 179696, 240956, 359392, 481912, 662629, 963824, 1325258, 1927648, 2650516, 5301032, 10602064, 21204128]

約数ペア:

[(1, 21204128), (2, 10602064), (4, 5301032), (8, 2650516), (11, 1927648), (16, 1325258), (22, 963824), (32, 662629), (44, 481912), (59, 359392), (88, 240956), (118, 179696), (176, 120478), (236, 89848), (352, 60239), (472, 44924), (649, 32672), (944, 22462), (1021, 20768), (1298, 16336), (1888, 11231), (2042, 10384), (2596, 8168), (4084, 5192)]