21615790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2833}}^1$

素因数の和:2956

約数の個数: 32

約数和(自身を含む): 44890560

約数和(自身を除く): 23274770

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 109, 218, 545, 763, 1090, 1526, 2833, 3815, 5666, 7630, 14165, 19831, 28330, 39662, 99155, 198310, 308797, 617594, 1543985, 2161579, 3087970, 4323158, 10807895, 21615790]

約数ペア:

[(1, 21615790), (2, 10807895), (5, 4323158), (7, 3087970), (10, 2161579), (14, 1543985), (35, 617594), (70, 308797), (109, 198310), (218, 99155), (545, 39662), (763, 28330), (1090, 19831), (1526, 14165), (2833, 7630), (3815, 5666)]