18157818

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{4457}}^1$

素因数の和:4566

約数の個数: 32

約数和(自身を含む): 41940864

約数和(自身を除く): 23783046

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 97, 194, 291, 582, 679, 1358, 2037, 4074, 4457, 8914, 13371, 26742, 31199, 62398, 93597, 187194, 432329, 864658, 1296987, 2593974, 3026303, 6052606, 9078909, 18157818]

約数ペア:

[(1, 18157818), (2, 9078909), (3, 6052606), (6, 3026303), (7, 2593974), (14, 1296987), (21, 864658), (42, 432329), (97, 187194), (194, 93597), (291, 62398), (582, 31199), (679, 26742), (1358, 13371), (2037, 8914), (4074, 4457)]