19947648

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:246

約数の個数: 128

約数和(自身を含む): 62375040

約数和(自身を除く): 42427392

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 41, 42, 48, 56, 64, 82, 84, 96, 112, 123, 128, 164, 168, 181, 192, 224, 246, 287, 328, 336, 362, 384, 448, 492, 543, 574, 656, 672, 724, 861, 896, 984, 1086, 1148, 1267, 1312, 1344, 1448, 1722, 1968, 2172, 2296, 2534, 2624, 2688, 2896, 3444, 3801, 3936, 4344, 4592, 5068, 5248, 5792, 6888, 7421, 7602, 7872, 8688, 9184, 10136, 11584, 13776, 14842, 15204, 15744, 17376, 18368, 20272, 22263, 23168, 27552, 29684, 30408, 34752, 36736, 40544, 44526, 51947, 55104, 59368, 60816, 69504, 81088, 89052, 103894, 110208, 118736, 121632, 155841, 162176, 178104, 207788, 237472, 243264, 311682, 356208, 415576, 474944, 486528, 623364, 712416, 831152, 949888, 1246728, 1424832, 1662304, 2493456, 2849664, 3324608, 4986912, 6649216, 9973824, 19947648]

約数ペア:

[(1, 19947648), (2, 9973824), (3, 6649216), (4, 4986912), (6, 3324608), (7, 2849664), (8, 2493456), (12, 1662304), (14, 1424832), (16, 1246728), (21, 949888), (24, 831152), (28, 712416), (32, 623364), (41, 486528), (42, 474944), (48, 415576), (56, 356208), (64, 311682), (82, 243264), (84, 237472), (96, 207788), (112, 178104), (123, 162176), (128, 155841), (164, 121632), (168, 118736), (181, 110208), (192, 103894), (224, 89052), (246, 81088), (287, 69504), (328, 60816), (336, 59368), (362, 55104), (384, 51947), (448, 44526), (492, 40544), (543, 36736), (574, 34752), (656, 30408), (672, 29684), (724, 27552), (861, 23168), (896, 22263), (984, 20272), (1086, 18368), (1148, 17376), (1267, 15744), (1312, 15204), (1344, 14842), (1448, 13776), (1722, 11584), (1968, 10136), (2172, 9184), (2296, 8688), (2534, 7872), (2624, 7602), (2688, 7421), (2896, 6888), (3444, 5792), (3801, 5248), (3936, 5068), (4344, 4592)]