21851445

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18919}}^1$

素因数の和:18945

約数の個数: 32

約数和(自身を含む): 43591680

約数和(自身を除く): 21740235

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 18919, 56757, 94595, 132433, 208109, 283785, 397299, 624327, 662165, 1040545, 1456763, 1986495, 3121635, 4370289, 7283815, 21851445]

約数ペア:

[(1, 21851445), (3, 7283815), (5, 4370289), (7, 3121635), (11, 1986495), (15, 1456763), (21, 1040545), (33, 662165), (35, 624327), (55, 397299), (77, 283785), (105, 208109), (165, 132433), (231, 94595), (385, 56757), (1155, 18919)]