18939648

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1$

素因数の和:310

約数の個数: 144

約数和(自身を含む): 62268416

約数和(自身を除く): 43328768

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 32, 39, 42, 48, 52, 56, 64, 78, 84, 91, 96, 104, 112, 128, 156, 168, 182, 192, 208, 224, 256, 271, 273, 312, 336, 364, 384, 416, 448, 542, 546, 624, 672, 728, 768, 813, 832, 896, 1084, 1092, 1248, 1344, 1456, 1626, 1664, 1792, 1897, 2168, 2184, 2496, 2688, 2912, 3252, 3328, 3523, 3794, 4336, 4368, 4992, 5376, 5691, 5824, 6504, 7046, 7588, 8672, 8736, 9984, 10569, 11382, 11648, 13008, 14092, 15176, 17344, 17472, 21138, 22764, 23296, 24661, 26016, 28184, 30352, 34688, 34944, 42276, 45528, 49322, 52032, 56368, 60704, 69376, 69888, 73983, 84552, 91056, 98644, 104064, 112736, 121408, 147966, 169104, 182112, 197288, 208128, 225472, 242816, 295932, 338208, 364224, 394576, 450944, 485632, 591864, 676416, 728448, 789152, 901888, 1183728, 1352832, 1456896, 1578304, 2367456, 2705664, 3156608, 4734912, 6313216, 9469824, 18939648]

約数ペア:

[(1, 18939648), (2, 9469824), (3, 6313216), (4, 4734912), (6, 3156608), (7, 2705664), (8, 2367456), (12, 1578304), (13, 1456896), (14, 1352832), (16, 1183728), (21, 901888), (24, 789152), (26, 728448), (28, 676416), (32, 591864), (39, 485632), (42, 450944), (48, 394576), (52, 364224), (56, 338208), (64, 295932), (78, 242816), (84, 225472), (91, 208128), (96, 197288), (104, 182112), (112, 169104), (128, 147966), (156, 121408), (168, 112736), (182, 104064), (192, 98644), (208, 91056), (224, 84552), (256, 73983), (271, 69888), (273, 69376), (312, 60704), (336, 56368), (364, 52032), (384, 49322), (416, 45528), (448, 42276), (542, 34944), (546, 34688), (624, 30352), (672, 28184), (728, 26016), (768, 24661), (813, 23296), (832, 22764), (896, 21138), (1084, 17472), (1092, 17344), (1248, 15176), (1344, 14092), (1456, 13008), (1626, 11648), (1664, 11382), (1792, 10569), (1897, 9984), (2168, 8736), (2184, 8672), (2496, 7588), (2688, 7046), (2912, 6504), (3252, 5824), (3328, 5691), (3523, 5376), (3794, 4992), (4336, 4368)]