18891972

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^2\times {\mathrm{4337}}^1$

素因数の和:4369

約数の個数: 54

約数和(自身を含む): 52502814

約数和(自身を除く): 33610842

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 121, 132, 198, 242, 363, 396, 484, 726, 1089, 1452, 2178, 4337, 4356, 8674, 13011, 17348, 26022, 39033, 47707, 52044, 78066, 95414, 143121, 156132, 190828, 286242, 429363, 524777, 572484, 858726, 1049554, 1574331, 1717452, 2099108, 3148662, 4722993, 6297324, 9445986, 18891972]

約数ペア:

[(1, 18891972), (2, 9445986), (3, 6297324), (4, 4722993), (6, 3148662), (9, 2099108), (11, 1717452), (12, 1574331), (18, 1049554), (22, 858726), (33, 572484), (36, 524777), (44, 429363), (66, 286242), (99, 190828), (121, 156132), (132, 143121), (198, 95414), (242, 78066), (363, 52044), (396, 47707), (484, 39033), (726, 26022), (1089, 17348), (1452, 13011), (2178, 8674), (4337, 4356)]