18737397

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{71}}^2$

素因数の和:214

約数の個数: 36

約数和(自身を含む): 31905120

約数和(自身を除く): 13167723

約数列:

[1, 3, 7, 9, 21, 59, 63, 71, 177, 213, 413, 497, 531, 639, 1239, 1491, 3717, 4189, 4473, 5041, 12567, 15123, 29323, 35287, 37701, 45369, 87969, 105861, 263907, 297419, 317583, 892257, 2081933, 2676771, 6245799, 18737397]

約数ペア:

[(1, 18737397), (3, 6245799), (7, 2676771), (9, 2081933), (21, 892257), (59, 317583), (63, 297419), (71, 263907), (177, 105861), (213, 87969), (413, 45369), (497, 37701), (531, 35287), (639, 29323), (1239, 15123), (1491, 12567), (3717, 5041), (4189, 4473)]