21054003860

素因数分解:

$2^2\times 5^1\times {\mathrm{2909}}^1\times {\mathrm{361877}}^1$

素因数の和:364795

約数の個数: 24

約数和(自身を含む): 44228729160

約数和(自身を除く): 23174725300

約数列:

[1, 2, 4, 5, 10, 20, 2909, 5818, 11636, 14545, 29090, 58180, 361877, 723754, 1447508, 1809385, 3618770, 7237540, 1052700193, 2105400386, 4210800772, 5263500965, 10527001930, 21054003860]

約数ペア:

[(1, 21054003860), (2, 10527001930), (4, 5263500965), (5, 4210800772), (10, 2105400386), (20, 1052700193), (2909, 7237540), (5818, 3618770), (11636, 1809385), (14545, 1447508), (29090, 723754), (58180, 361877)]