18686745

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5393}}^1$

素因数の和:5422

約数の個数: 48

約数和(自身を含む): 40390272

約数和(自身を除く): 21703527

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 5393, 16179, 26965, 37751, 48537, 59323, 80895, 113253, 177969, 188755, 242685, 296615, 339759, 415261, 533907, 566265, 889845, 1245783, 1698795, 2076305, 2669535, 3737349, 6228915, 18686745]

約数ペア:

[(1, 18686745), (3, 6228915), (5, 3737349), (7, 2669535), (9, 2076305), (11, 1698795), (15, 1245783), (21, 889845), (33, 566265), (35, 533907), (45, 415261), (55, 339759), (63, 296615), (77, 242685), (99, 188755), (105, 177969), (165, 113253), (231, 80895), (315, 59323), (385, 48537), (495, 37751), (693, 26965), (1155, 16179), (3465, 5393)]