21242848

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2081}}^1$

素因数の和:2131

約数の個数: 48

約数和(自身を含む): 47219760

約数和(自身を除く): 25976912

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 32, 44, 58, 88, 116, 176, 232, 319, 352, 464, 638, 928, 1276, 2081, 2552, 4162, 5104, 8324, 10208, 16648, 22891, 33296, 45782, 60349, 66592, 91564, 120698, 183128, 241396, 366256, 482792, 663839, 732512, 965584, 1327678, 1931168, 2655356, 5310712, 10621424, 21242848]

約数ペア:

[(1, 21242848), (2, 10621424), (4, 5310712), (8, 2655356), (11, 1931168), (16, 1327678), (22, 965584), (29, 732512), (32, 663839), (44, 482792), (58, 366256), (88, 241396), (116, 183128), (176, 120698), (232, 91564), (319, 66592), (352, 60349), (464, 45782), (638, 33296), (928, 22891), (1276, 16648), (2081, 10208), (2552, 8324), (4162, 5104)]