21809535

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1009}}^1$

素因数の和:1159

約数の個数: 32

約数和(自身を含む): 38396160

約数和(自身を除く): 16586625

約数列:

[1, 3, 5, 11, 15, 33, 55, 131, 165, 393, 655, 1009, 1441, 1965, 3027, 4323, 5045, 7205, 11099, 15135, 21615, 33297, 55495, 132179, 166485, 396537, 660895, 1453969, 1982685, 4361907, 7269845, 21809535]

約数ペア:

[(1, 21809535), (3, 7269845), (5, 4361907), (11, 1982685), (15, 1453969), (33, 660895), (55, 396537), (131, 166485), (165, 132179), (393, 55495), (655, 33297), (1009, 21615), (1441, 15135), (1965, 11099), (3027, 7205), (4323, 5045)]