21057564

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{2381}}^1$

素因数の和:2466

約数の個数: 48

約数和(自身を含む): 54423936

約数和(自身を除く): 33366372

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 67, 132, 134, 201, 268, 402, 737, 804, 1474, 2211, 2381, 2948, 4422, 4762, 7143, 8844, 9524, 14286, 26191, 28572, 52382, 78573, 104764, 157146, 159527, 314292, 319054, 478581, 638108, 957162, 1754797, 1914324, 3509594, 5264391, 7019188, 10528782, 21057564]

約数ペア:

[(1, 21057564), (2, 10528782), (3, 7019188), (4, 5264391), (6, 3509594), (11, 1914324), (12, 1754797), (22, 957162), (33, 638108), (44, 478581), (66, 319054), (67, 314292), (132, 159527), (134, 157146), (201, 104764), (268, 78573), (402, 52382), (737, 28572), (804, 26191), (1474, 14286), (2211, 9524), (2381, 8844), (2948, 7143), (4422, 4762)]