21583870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{28031}}^1$

素因数の和:28056

約数の個数: 32

約数和(自身を含む): 48439296

約数和(自身を除く): 26855426

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 28031, 56062, 140155, 196217, 280310, 308341, 392434, 616682, 981085, 1541705, 1962170, 2158387, 3083410, 4316774, 10791935, 21583870]

約数ペア:

[(1, 21583870), (2, 10791935), (5, 4316774), (7, 3083410), (10, 2158387), (11, 1962170), (14, 1541705), (22, 981085), (35, 616682), (55, 392434), (70, 308341), (77, 280310), (110, 196217), (154, 140155), (385, 56062), (770, 28031)]