20488972

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{19777}}^1$

素因数の和:19825

約数の個数: 24

約数和(自身を含む): 42087584

約数和(自身を除く): 21598612

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 19777, 39554, 79108, 138439, 276878, 553756, 731749, 1463498, 2926996, 5122243, 10244486, 20488972]

約数ペア:

[(1, 20488972), (2, 10244486), (4, 5122243), (7, 2926996), (14, 1463498), (28, 731749), (37, 553756), (74, 276878), (148, 138439), (259, 79108), (518, 39554), (1036, 19777)]