18638505985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{538763}}^1$

素因数の和:538833

約数の個数: 32

約数和(自身を含む): 26533049472

約数和(自身を除く): 7894543487

約数列:

[1, 5, 11, 17, 37, 55, 85, 185, 187, 407, 629, 935, 2035, 3145, 6919, 34595, 538763, 2693815, 5926393, 9158971, 19934231, 29631965, 45794855, 99671155, 100748681, 219276541, 338881927, 503743405, 1096382705, 1694409635, 3727701197, 18638505985]

約数ペア:

[(1, 18638505985), (5, 3727701197), (11, 1694409635), (17, 1096382705), (37, 503743405), (55, 338881927), (85, 219276541), (185, 100748681), (187, 99671155), (407, 45794855), (629, 29631965), (935, 19934231), (2035, 9158971), (3145, 5926393), (6919, 2693815), (34595, 538763)]