21238448

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17239}}^1$

素因数の和:17265

約数の個数: 40

約数和(自身を含む): 51306240

約数和(自身を除く): 30067792

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 17239, 34478, 68956, 120673, 137912, 189629, 241346, 275824, 379258, 482692, 758516, 965384, 1327403, 1517032, 1930768, 2654806, 3034064, 5309612, 10619224, 21238448]

約数ペア:

[(1, 21238448), (2, 10619224), (4, 5309612), (7, 3034064), (8, 2654806), (11, 1930768), (14, 1517032), (16, 1327403), (22, 965384), (28, 758516), (44, 482692), (56, 379258), (77, 275824), (88, 241346), (112, 189629), (154, 137912), (176, 120673), (308, 68956), (616, 34478), (1232, 17239)]