20808515581

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{22511}}^1$

素因数の和:22681

約数の個数: 32

約数和(自身を含む): 25294123008

約数和(自身を除く): 4485607427

約数列:

[1, 7, 37, 43, 83, 259, 301, 581, 1591, 3071, 3569, 11137, 21497, 22511, 24983, 132053, 157577, 832907, 924371, 967973, 1868413, 5830349, 6775811, 13078891, 35815001, 69131281, 80341759, 250705007, 483918967, 562392313, 2972645083, 20808515581]

約数ペア:

[(1, 20808515581), (7, 2972645083), (37, 562392313), (43, 483918967), (83, 250705007), (259, 80341759), (301, 69131281), (581, 35815001), (1591, 13078891), (3071, 6775811), (3569, 5830349), (11137, 1868413), (21497, 967973), (22511, 924371), (24983, 832907), (132053, 157577)]