21672008

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{8387}}^1$

素因数の和:8429

約数の個数: 32

約数和(自身を含む): 45295200

約数和(自身を除く): 23623192

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 8387, 16774, 33548, 67096, 142579, 159353, 285158, 318706, 570316, 637412, 1140632, 1274824, 2709001, 5418002, 10836004, 21672008]

約数ペア:

[(1, 21672008), (2, 10836004), (4, 5418002), (8, 2709001), (17, 1274824), (19, 1140632), (34, 637412), (38, 570316), (68, 318706), (76, 285158), (136, 159353), (152, 142579), (323, 67096), (646, 33548), (1292, 16774), (2584, 8387)]