921316780

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{336247}}^1$

素因数の和:336393

約数の個数: 24

約数和(自身を含む): 1948893408

約数和(自身を除く): 1027576628

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 336247, 672494, 1344988, 1681235, 3362470, 6724940, 46065839, 92131678, 184263356, 230329195, 460658390, 921316780]

約数ペア:

[(1, 921316780), (2, 460658390), (4, 230329195), (5, 184263356), (10, 92131678), (20, 46065839), (137, 6724940), (274, 3362470), (548, 1681235), (685, 1344988), (1370, 672494), (2740, 336247)]