20849207071

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1\times {\mathrm{22109}}^1$

素因数の和:22495

約数の個数: 32

約数和(自身を含む): 26778216960

約数和(自身を除く): 5929009889

約数列:

[1, 7, 11, 37, 77, 259, 331, 407, 2317, 2849, 3641, 12247, 22109, 25487, 85729, 134717, 154763, 243199, 818033, 943019, 1702393, 5726231, 7318079, 8998363, 51226553, 62988541, 80498869, 270768923, 563492083, 1895382461, 2978458153, 20849207071]

約数ペア:

[(1, 20849207071), (7, 2978458153), (11, 1895382461), (37, 563492083), (77, 270768923), (259, 80498869), (331, 62988541), (407, 51226553), (2317, 8998363), (2849, 7318079), (3641, 5726231), (12247, 1702393), (22109, 943019), (25487, 818033), (85729, 243199), (134717, 154763)]