18007724

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 37927680

約数和(自身を除く): 19919956

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 67, 116, 134, 203, 268, 331, 406, 469, 662, 812, 938, 1324, 1876, 1943, 2317, 3886, 4634, 7772, 9268, 9599, 13601, 19198, 22177, 27202, 38396, 44354, 54404, 67193, 88708, 134386, 155239, 268772, 310478, 620956, 643133, 1286266, 2572532, 4501931, 9003862, 18007724]

約数ペア:

[(1, 18007724), (2, 9003862), (4, 4501931), (7, 2572532), (14, 1286266), (28, 643133), (29, 620956), (58, 310478), (67, 268772), (116, 155239), (134, 134386), (203, 88708), (268, 67193), (331, 54404), (406, 44354), (469, 38396), (662, 27202), (812, 22177), (938, 19198), (1324, 13601), (1876, 9599), (1943, 9268), (2317, 7772), (3886, 4634)]