21693156

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2473}}^1$

素因数の和:2540

約数の個数: 48

約数和(自身を含む): 54863424

約数和(自身を除く): 33170268

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 43, 51, 68, 86, 102, 129, 172, 204, 258, 516, 731, 1462, 2193, 2473, 2924, 4386, 4946, 7419, 8772, 9892, 14838, 29676, 42041, 84082, 106339, 126123, 168164, 212678, 252246, 319017, 425356, 504492, 638034, 1276068, 1807763, 3615526, 5423289, 7231052, 10846578, 21693156]

約数ペア:

[(1, 21693156), (2, 10846578), (3, 7231052), (4, 5423289), (6, 3615526), (12, 1807763), (17, 1276068), (34, 638034), (43, 504492), (51, 425356), (68, 319017), (86, 252246), (102, 212678), (129, 168164), (172, 126123), (204, 106339), (258, 84082), (516, 42041), (731, 29676), (1462, 14838), (2193, 9892), (2473, 8772), (2924, 7419), (4386, 4946)]