21745416

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^2$

素因数の和:116

約数の個数: 144

約数和(自身を含む): 70711920

約数和(自身を除く): 48966504

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 41, 42, 44, 49, 56, 66, 77, 82, 84, 88, 98, 123, 132, 147, 154, 164, 168, 196, 231, 246, 264, 287, 294, 308, 328, 392, 451, 462, 492, 539, 574, 588, 616, 861, 902, 924, 984, 1078, 1148, 1176, 1353, 1617, 1681, 1722, 1804, 1848, 2009, 2156, 2296, 2706, 3157, 3234, 3362, 3444, 3608, 4018, 4312, 5043, 5412, 6027, 6314, 6468, 6724, 6888, 8036, 9471, 10086, 10824, 11767, 12054, 12628, 12936, 13448, 16072, 18491, 18942, 20172, 22099, 23534, 24108, 25256, 35301, 36982, 37884, 40344, 44198, 47068, 48216, 55473, 66297, 70602, 73964, 75768, 82369, 88396, 94136, 110946, 129437, 132594, 141204, 147928, 164738, 176792, 221892, 247107, 258874, 265188, 282408, 329476, 388311, 443784, 494214, 517748, 530376, 658952, 776622, 906059, 988428, 1035496, 1553244, 1812118, 1976856, 2718177, 3106488, 3624236, 5436354, 7248472, 10872708, 21745416]

約数ペア:

[(1, 21745416), (2, 10872708), (3, 7248472), (4, 5436354), (6, 3624236), (7, 3106488), (8, 2718177), (11, 1976856), (12, 1812118), (14, 1553244), (21, 1035496), (22, 988428), (24, 906059), (28, 776622), (33, 658952), (41, 530376), (42, 517748), (44, 494214), (49, 443784), (56, 388311), (66, 329476), (77, 282408), (82, 265188), (84, 258874), (88, 247107), (98, 221892), (123, 176792), (132, 164738), (147, 147928), (154, 141204), (164, 132594), (168, 129437), (196, 110946), (231, 94136), (246, 88396), (264, 82369), (287, 75768), (294, 73964), (308, 70602), (328, 66297), (392, 55473), (451, 48216), (462, 47068), (492, 44198), (539, 40344), (574, 37884), (588, 36982), (616, 35301), (861, 25256), (902, 24108), (924, 23534), (984, 22099), (1078, 20172), (1148, 18942), (1176, 18491), (1353, 16072), (1617, 13448), (1681, 12936), (1722, 12628), (1804, 12054), (1848, 11767), (2009, 10824), (2156, 10086), (2296, 9471), (2706, 8036), (3157, 6888), (3234, 6724), (3362, 6468), (3444, 6314), (3608, 6027), (4018, 5412), (4312, 5043)]