21043756

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{5839}}^1$

素因数の和:5913

約数の個数: 24

約数和(自身を含む): 39735360

約数和(自身を除く): 18691604

約数列:

[1, 2, 4, 17, 34, 53, 68, 106, 212, 901, 1802, 3604, 5839, 11678, 23356, 99263, 198526, 309467, 397052, 618934, 1237868, 5260939, 10521878, 21043756]

約数ペア:

[(1, 21043756), (2, 10521878), (4, 5260939), (17, 1237868), (34, 618934), (53, 397052), (68, 309467), (106, 198526), (212, 99263), (901, 23356), (1802, 11678), (3604, 5839)]