21054700

素因数分解:

$2^2\times 5^2\times {\mathrm{311}}^1\times {\mathrm{677}}^1$

素因数の和:1002

約数の個数: 36

約数和(自身を含む): 45903312

約数和(自身を除く): 24848612

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 311, 622, 677, 1244, 1354, 1555, 2708, 3110, 3385, 6220, 6770, 7775, 13540, 15550, 16925, 31100, 33850, 67700, 210547, 421094, 842188, 1052735, 2105470, 4210940, 5263675, 10527350, 21054700]

約数ペア:

[(1, 21054700), (2, 10527350), (4, 5263675), (5, 4210940), (10, 2105470), (20, 1052735), (25, 842188), (50, 421094), (100, 210547), (311, 67700), (622, 33850), (677, 31100), (1244, 16925), (1354, 15550), (1555, 13540), (2708, 7775), (3110, 6770), (3385, 6220)]