21311248

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8273}}^1$

素因数の和:8311

約数の個数: 40

約数和(自身を含む): 49246848

約数和(自身を除く): 27935600

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 8273, 16546, 33092, 57911, 66184, 115822, 132368, 190279, 231644, 380558, 463288, 761116, 926576, 1331953, 1522232, 2663906, 3044464, 5327812, 10655624, 21311248]

約数ペア:

[(1, 21311248), (2, 10655624), (4, 5327812), (7, 3044464), (8, 2663906), (14, 1522232), (16, 1331953), (23, 926576), (28, 761116), (46, 463288), (56, 380558), (92, 231644), (112, 190279), (161, 132368), (184, 115822), (322, 66184), (368, 57911), (644, 33092), (1288, 16546), (2576, 8273)]