20838402

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:192

約数の個数: 96

約数和(自身を含む): 52852800

約数和(自身を除く): 32014398

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 38, 39, 43, 57, 78, 86, 109, 114, 117, 129, 171, 218, 234, 247, 258, 327, 342, 387, 494, 559, 654, 741, 774, 817, 981, 1118, 1417, 1482, 1634, 1677, 1962, 2071, 2223, 2451, 2834, 3354, 4142, 4251, 4446, 4687, 4902, 5031, 6213, 7353, 8502, 9374, 10062, 10621, 12426, 12753, 14061, 14706, 18639, 21242, 25506, 26923, 28122, 31863, 37278, 42183, 53846, 60931, 63726, 80769, 84366, 89053, 95589, 121862, 161538, 178106, 182793, 191178, 242307, 267159, 365586, 484614, 534318, 548379, 801477, 1096758, 1157689, 1602954, 2315378, 3473067, 6946134, 10419201, 20838402]

約数ペア:

[(1, 20838402), (2, 10419201), (3, 6946134), (6, 3473067), (9, 2315378), (13, 1602954), (18, 1157689), (19, 1096758), (26, 801477), (38, 548379), (39, 534318), (43, 484614), (57, 365586), (78, 267159), (86, 242307), (109, 191178), (114, 182793), (117, 178106), (129, 161538), (171, 121862), (218, 95589), (234, 89053), (247, 84366), (258, 80769), (327, 63726), (342, 60931), (387, 53846), (494, 42183), (559, 37278), (654, 31863), (741, 28122), (774, 26923), (817, 25506), (981, 21242), (1118, 18639), (1417, 14706), (1482, 14061), (1634, 12753), (1677, 12426), (1962, 10621), (2071, 10062), (2223, 9374), (2451, 8502), (2834, 7353), (3354, 6213), (4142, 5031), (4251, 4902), (4446, 4687)]