19382571

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1$

素因数の和:337

約数の個数: 40

約数和(自身を含む): 31711680

約数和(自身を除く): 12329109

約数列:

[1, 3, 9, 13, 27, 39, 79, 81, 117, 233, 237, 351, 699, 711, 1027, 1053, 2097, 2133, 3029, 3081, 6291, 6399, 9087, 9243, 18407, 18873, 27261, 27729, 55221, 81783, 83187, 165663, 239291, 245349, 496989, 717873, 1490967, 2153619, 6460857, 19382571]

約数ペア:

[(1, 19382571), (3, 6460857), (9, 2153619), (13, 1490967), (27, 717873), (39, 496989), (79, 245349), (81, 239291), (117, 165663), (233, 83187), (237, 81783), (351, 55221), (699, 27729), (711, 27261), (1027, 18873), (1053, 18407), (2097, 9243), (2133, 9087), (3029, 6399), (3081, 6291)]