20981352

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1759}}^1$

素因数の和:1846

約数の個数: 64

約数和(自身を含む): 60825600

約数和(自身を除く): 39844248

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 71, 84, 142, 168, 213, 284, 426, 497, 568, 852, 994, 1491, 1704, 1759, 1988, 2982, 3518, 3976, 5277, 5964, 7036, 10554, 11928, 12313, 14072, 21108, 24626, 36939, 42216, 49252, 73878, 98504, 124889, 147756, 249778, 295512, 374667, 499556, 749334, 874223, 999112, 1498668, 1748446, 2622669, 2997336, 3496892, 5245338, 6993784, 10490676, 20981352]

約数ペア:

[(1, 20981352), (2, 10490676), (3, 6993784), (4, 5245338), (6, 3496892), (7, 2997336), (8, 2622669), (12, 1748446), (14, 1498668), (21, 999112), (24, 874223), (28, 749334), (42, 499556), (56, 374667), (71, 295512), (84, 249778), (142, 147756), (168, 124889), (213, 98504), (284, 73878), (426, 49252), (497, 42216), (568, 36939), (852, 24626), (994, 21108), (1491, 14072), (1704, 12313), (1759, 11928), (1988, 10554), (2982, 7036), (3518, 5964), (3976, 5277)]