21194376

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:255

約数の個数: 128

約数和(自身を含む): 66044160

約数和(自身を除く): 44849784

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 41, 42, 51, 56, 68, 82, 84, 102, 119, 123, 136, 164, 168, 181, 204, 238, 246, 287, 328, 357, 362, 408, 476, 492, 543, 574, 697, 714, 724, 861, 952, 984, 1086, 1148, 1267, 1394, 1428, 1448, 1722, 2091, 2172, 2296, 2534, 2788, 2856, 3077, 3444, 3801, 4182, 4344, 4879, 5068, 5576, 6154, 6888, 7421, 7602, 8364, 9231, 9758, 10136, 12308, 14637, 14842, 15204, 16728, 18462, 19516, 21539, 22263, 24616, 29274, 29684, 30408, 36924, 39032, 43078, 44526, 51947, 58548, 59368, 64617, 73848, 86156, 89052, 103894, 117096, 126157, 129234, 155841, 172312, 178104, 207788, 252314, 258468, 311682, 378471, 415576, 504628, 516936, 623364, 756942, 883099, 1009256, 1246728, 1513884, 1766198, 2649297, 3027768, 3532396, 5298594, 7064792, 10597188, 21194376]

約数ペア:

[(1, 21194376), (2, 10597188), (3, 7064792), (4, 5298594), (6, 3532396), (7, 3027768), (8, 2649297), (12, 1766198), (14, 1513884), (17, 1246728), (21, 1009256), (24, 883099), (28, 756942), (34, 623364), (41, 516936), (42, 504628), (51, 415576), (56, 378471), (68, 311682), (82, 258468), (84, 252314), (102, 207788), (119, 178104), (123, 172312), (136, 155841), (164, 129234), (168, 126157), (181, 117096), (204, 103894), (238, 89052), (246, 86156), (287, 73848), (328, 64617), (357, 59368), (362, 58548), (408, 51947), (476, 44526), (492, 43078), (543, 39032), (574, 36924), (697, 30408), (714, 29684), (724, 29274), (861, 24616), (952, 22263), (984, 21539), (1086, 19516), (1148, 18462), (1267, 16728), (1394, 15204), (1428, 14842), (1448, 14637), (1722, 12308), (2091, 10136), (2172, 9758), (2296, 9231), (2534, 8364), (2788, 7602), (2856, 7421), (3077, 6888), (3444, 6154), (3801, 5576), (4182, 5068), (4344, 4879)]