18738837

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{271}}^1$

素因数の和:490

約数の個数: 32

約数和(自身を含む): 30159360

約数和(自身を除く): 11420523

約数列:

[1, 3, 9, 13, 27, 39, 117, 197, 271, 351, 591, 813, 1773, 2439, 2561, 3523, 5319, 7317, 7683, 10569, 23049, 31707, 53387, 69147, 95121, 160161, 480483, 694031, 1441449, 2082093, 6246279, 18738837]

約数ペア:

[(1, 18738837), (3, 6246279), (9, 2082093), (13, 1441449), (27, 694031), (39, 480483), (117, 160161), (197, 95121), (271, 69147), (351, 53387), (591, 31707), (813, 23049), (1773, 10569), (2439, 7683), (2561, 7317), (3523, 5319)]