21000366305

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{1303}}^1\times {\mathrm{1493}}^1$

素因数の和:2945

約数の個数: 32

約数和(自身を含む): 26931585024

約数和(自身を除く): 5931218719

約数列:

[1, 5, 17, 85, 127, 635, 1303, 1493, 2159, 6515, 7465, 10795, 22151, 25381, 110755, 126905, 165481, 189611, 827405, 948055, 1945379, 2813177, 3223387, 9726895, 14065885, 16116935, 33071443, 165357215, 247063133, 1235315665, 4200073261, 21000366305]

約数ペア:

[(1, 21000366305), (5, 4200073261), (17, 1235315665), (85, 247063133), (127, 165357215), (635, 33071443), (1303, 16116935), (1493, 14065885), (2159, 9726895), (6515, 3223387), (7465, 2813177), (10795, 1945379), (22151, 948055), (25381, 827405), (110755, 189611), (126905, 165481)]