218512756

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2357}}^1$

素因数の和:2429

約数の個数: 72

約数和(自身を含む): 496764576

約数和(自身を除く): 278251820

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 49, 77, 86, 98, 154, 172, 196, 301, 308, 473, 539, 602, 946, 1078, 1204, 1892, 2107, 2156, 2357, 3311, 4214, 4714, 6622, 8428, 9428, 13244, 16499, 23177, 25927, 32998, 46354, 51854, 65996, 92708, 101351, 103708, 115493, 181489, 202702, 230986, 362978, 405404, 461972, 709457, 725956, 1114861, 1270423, 1418914, 2229722, 2540846, 2837828, 4459444, 4966199, 5081692, 7804027, 9932398, 15608054, 19864796, 31216108, 54628189, 109256378, 218512756]

約数ペア:

[(1, 218512756), (2, 109256378), (4, 54628189), (7, 31216108), (11, 19864796), (14, 15608054), (22, 9932398), (28, 7804027), (43, 5081692), (44, 4966199), (49, 4459444), (77, 2837828), (86, 2540846), (98, 2229722), (154, 1418914), (172, 1270423), (196, 1114861), (301, 725956), (308, 709457), (473, 461972), (539, 405404), (602, 362978), (946, 230986), (1078, 202702), (1204, 181489), (1892, 115493), (2107, 103708), (2156, 101351), (2357, 92708), (3311, 65996), (4214, 51854), (4714, 46354), (6622, 32998), (8428, 25927), (9428, 23177), (13244, 16499)]