21953568

素因数分解:

$2^5\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{359}}^1$

素因数の和:399

約数の個数: 144

約数和(自身を含む): 72394560

約数和(自身を除く): 50440992

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 32, 39, 42, 48, 49, 52, 56, 78, 84, 91, 96, 98, 104, 112, 147, 156, 168, 182, 196, 208, 224, 273, 294, 312, 336, 359, 364, 392, 416, 546, 588, 624, 637, 672, 718, 728, 784, 1077, 1092, 1176, 1248, 1274, 1436, 1456, 1568, 1911, 2154, 2184, 2352, 2513, 2548, 2872, 2912, 3822, 4308, 4368, 4667, 4704, 5026, 5096, 5744, 7539, 7644, 8616, 8736, 9334, 10052, 10192, 11488, 14001, 15078, 15288, 17232, 17591, 18668, 20104, 20384, 28002, 30156, 30576, 32669, 34464, 35182, 37336, 40208, 52773, 56004, 60312, 61152, 65338, 70364, 74672, 80416, 98007, 105546, 112008, 120624, 130676, 140728, 149344, 196014, 211092, 224016, 228683, 241248, 261352, 281456, 392028, 422184, 448032, 457366, 522704, 562912, 686049, 784056, 844368, 914732, 1045408, 1372098, 1568112, 1688736, 1829464, 2744196, 3136224, 3658928, 5488392, 7317856, 10976784, 21953568]

約数ペア:

[(1, 21953568), (2, 10976784), (3, 7317856), (4, 5488392), (6, 3658928), (7, 3136224), (8, 2744196), (12, 1829464), (13, 1688736), (14, 1568112), (16, 1372098), (21, 1045408), (24, 914732), (26, 844368), (28, 784056), (32, 686049), (39, 562912), (42, 522704), (48, 457366), (49, 448032), (52, 422184), (56, 392028), (78, 281456), (84, 261352), (91, 241248), (96, 228683), (98, 224016), (104, 211092), (112, 196014), (147, 149344), (156, 140728), (168, 130676), (182, 120624), (196, 112008), (208, 105546), (224, 98007), (273, 80416), (294, 74672), (312, 70364), (336, 65338), (359, 61152), (364, 60312), (392, 56004), (416, 52773), (546, 40208), (588, 37336), (624, 35182), (637, 34464), (672, 32669), (718, 30576), (728, 30156), (784, 28002), (1077, 20384), (1092, 20104), (1176, 18668), (1248, 17591), (1274, 17232), (1436, 15288), (1456, 15078), (1568, 14001), (1911, 11488), (2154, 10192), (2184, 10052), (2352, 9334), (2513, 8736), (2548, 8616), (2872, 7644), (2912, 7539), (3822, 5744), (4308, 5096), (4368, 5026), (4667, 4704)]