18979623

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2351}}^1$

素因数の和:2396

約数の個数: 32

約数和(自身を含む): 31610880

約数和(自身を除く): 12631257

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 117, 207, 299, 351, 621, 897, 2351, 2691, 7053, 8073, 21159, 30563, 54073, 63477, 91689, 162219, 275067, 486657, 702949, 825201, 1459971, 2108847, 6326541, 18979623]

約数ペア:

[(1, 18979623), (3, 6326541), (9, 2108847), (13, 1459971), (23, 825201), (27, 702949), (39, 486657), (69, 275067), (117, 162219), (207, 91689), (299, 63477), (351, 54073), (621, 30563), (897, 21159), (2351, 8073), (2691, 7053)]