21423885

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{967}}^1$

素因数の和:1193

約数の個数: 32

約数和(自身を含む): 39401472

約数和(自身を除く): 17977587

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 211, 633, 967, 1055, 1477, 2901, 3165, 4431, 4835, 6769, 7385, 14505, 20307, 22155, 33845, 101535, 204037, 612111, 1020185, 1428259, 3060555, 4284777, 7141295, 21423885]

約数ペア:

[(1, 21423885), (3, 7141295), (5, 4284777), (7, 3060555), (15, 1428259), (21, 1020185), (35, 612111), (105, 204037), (211, 101535), (633, 33845), (967, 22155), (1055, 20307), (1477, 14505), (2901, 7385), (3165, 6769), (4431, 4835)]