20809723924

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{52127}}^1$

素因数の和:52396

約数の個数: 48

約数和(自身を含む): 40844998656

約数和(自身を除く): 20035274732

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 211, 422, 473, 844, 946, 1892, 2321, 4642, 9073, 9284, 18146, 36292, 52127, 99803, 104254, 199606, 208508, 399212, 573397, 1146794, 2241461, 2293588, 4482922, 8965844, 10998797, 21997594, 24656071, 43995188, 49312142, 98624284, 120986767, 241973534, 472948271, 483947068, 945896542, 1891793084, 5202430981, 10404861962, 20809723924]

約数ペア:

[(1, 20809723924), (2, 10404861962), (4, 5202430981), (11, 1891793084), (22, 945896542), (43, 483947068), (44, 472948271), (86, 241973534), (172, 120986767), (211, 98624284), (422, 49312142), (473, 43995188), (844, 24656071), (946, 21997594), (1892, 10998797), (2321, 8965844), (4642, 4482922), (9073, 2293588), (9284, 2241461), (18146, 1146794), (36292, 573397), (52127, 399212), (99803, 208508), (104254, 199606)]