21004335

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42433}}^1$

素因数の和:42455

約数の個数: 24

約数和(自身を含む): 39718224

約数和(自身を除く): 18713889

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 42433, 127299, 212165, 381897, 466763, 636495, 1400289, 1909485, 2333815, 4200867, 7001445, 21004335]

約数ペア:

[(1, 21004335), (3, 7001445), (5, 4200867), (9, 2333815), (11, 1909485), (15, 1400289), (33, 636495), (45, 466763), (55, 381897), (99, 212165), (165, 127299), (495, 42433)]