21000994574

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{99257}}^1$

素因数の和:99417

約数の個数: 48

約数和(自身を含む): 39106063872

約数和(自身を除く): 18105069298

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 119, 127, 238, 254, 833, 889, 1666, 1778, 2159, 4318, 6223, 12446, 15113, 30226, 99257, 105791, 198514, 211582, 694799, 1389598, 1687369, 3374738, 4863593, 9727186, 11811583, 12605639, 23623166, 25211278, 82681081, 88239473, 165362162, 176478946, 214295863, 428591726, 617676311, 1235352622, 1500071041, 3000142082, 10500497287, 21000994574]

約数ペア:

[(1, 21000994574), (2, 10500497287), (7, 3000142082), (14, 1500071041), (17, 1235352622), (34, 617676311), (49, 428591726), (98, 214295863), (119, 176478946), (127, 165362162), (238, 88239473), (254, 82681081), (833, 25211278), (889, 23623166), (1666, 12605639), (1778, 11811583), (2159, 9727186), (4318, 4863593), (6223, 3374738), (12446, 1687369), (15113, 1389598), (30226, 694799), (99257, 211582), (105791, 198514)]