20816558

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{229}}^1$

素因数の和:432

約数の個数: 32

約数和(自身を含む): 36917760

約数和(自身を除く): 16101202

約数列:

[1, 2, 7, 14, 43, 86, 151, 229, 301, 302, 458, 602, 1057, 1603, 2114, 3206, 6493, 9847, 12986, 19694, 34579, 45451, 68929, 69158, 90902, 137858, 242053, 484106, 1486897, 2973794, 10408279, 20816558]

約数ペア:

[(1, 20816558), (2, 10408279), (7, 2973794), (14, 1486897), (43, 484106), (86, 242053), (151, 137858), (229, 90902), (301, 69158), (302, 68929), (458, 45451), (602, 34579), (1057, 19694), (1603, 12986), (2114, 9847), (3206, 6493)]