18793719

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9623}}^1$

素因数の和:9667

約数の個数: 24

約数和(自身を含む): 32028672

約数和(自身を除く): 13234953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 9623, 28869, 67361, 86607, 202083, 298313, 606249, 894939, 2088191, 2684817, 6264573, 18793719]

約数ペア:

[(1, 18793719), (3, 6264573), (7, 2684817), (9, 2088191), (21, 894939), (31, 606249), (63, 298313), (93, 202083), (217, 86607), (279, 67361), (651, 28869), (1953, 9623)]