19788952

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{641}}^1$

素因数の和:891

約数の個数: 32

約数和(自身を含む): 39521520

約数和(自身を除く): 19732568

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 227, 454, 641, 908, 1282, 1816, 2564, 3859, 5128, 7718, 10897, 15436, 21794, 30872, 43588, 87176, 145507, 291014, 582028, 1164056, 2473619, 4947238, 9894476, 19788952]

約数ペア:

[(1, 19788952), (2, 9894476), (4, 4947238), (8, 2473619), (17, 1164056), (34, 582028), (68, 291014), (136, 145507), (227, 87176), (454, 43588), (641, 30872), (908, 21794), (1282, 15436), (1816, 10897), (2564, 7718), (3859, 5128)]