21805392

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:225

約数の個数: 120

約数和(自身を含む): 66948096

約数和(自身を除く): 45142704

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 49, 56, 73, 84, 98, 112, 127, 146, 147, 168, 196, 219, 254, 292, 294, 336, 381, 392, 438, 508, 511, 584, 588, 762, 784, 876, 889, 1016, 1022, 1168, 1176, 1524, 1533, 1752, 1778, 2032, 2044, 2352, 2667, 3048, 3066, 3504, 3556, 3577, 4088, 5334, 6096, 6132, 6223, 7112, 7154, 8176, 9271, 10668, 10731, 12264, 12446, 14224, 14308, 18542, 18669, 21336, 21462, 24528, 24892, 27813, 28616, 37084, 37338, 42672, 42924, 49784, 55626, 57232, 64897, 74168, 74676, 85848, 99568, 111252, 129794, 148336, 149352, 171696, 194691, 222504, 259588, 298704, 389382, 445008, 454279, 519176, 778764, 908558, 1038352, 1362837, 1557528, 1817116, 2725674, 3115056, 3634232, 5451348, 7268464, 10902696, 21805392]

約数ペア:

[(1, 21805392), (2, 10902696), (3, 7268464), (4, 5451348), (6, 3634232), (7, 3115056), (8, 2725674), (12, 1817116), (14, 1557528), (16, 1362837), (21, 1038352), (24, 908558), (28, 778764), (42, 519176), (48, 454279), (49, 445008), (56, 389382), (73, 298704), (84, 259588), (98, 222504), (112, 194691), (127, 171696), (146, 149352), (147, 148336), (168, 129794), (196, 111252), (219, 99568), (254, 85848), (292, 74676), (294, 74168), (336, 64897), (381, 57232), (392, 55626), (438, 49784), (508, 42924), (511, 42672), (584, 37338), (588, 37084), (762, 28616), (784, 27813), (876, 24892), (889, 24528), (1016, 21462), (1022, 21336), (1168, 18669), (1176, 18542), (1524, 14308), (1533, 14224), (1752, 12446), (1778, 12264), (2032, 10731), (2044, 10668), (2352, 9271), (2667, 8176), (3048, 7154), (3066, 7112), (3504, 6223), (3556, 6132), (3577, 6096), (4088, 5334)]