18672381

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3257}}^1$

素因数の和:3290

約数の個数: 36

約数和(自身を含む): 33798492

約数和(自身を除く): 15126111

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 819, 1911, 3257, 5733, 9771, 22799, 29313, 42341, 68397, 127023, 159593, 205191, 296387, 381069, 478779, 889161, 1436337, 2074709, 2667483, 6224127, 18672381]

約数ペア:

[(1, 18672381), (3, 6224127), (7, 2667483), (9, 2074709), (13, 1436337), (21, 889161), (39, 478779), (49, 381069), (63, 296387), (91, 205191), (117, 159593), (147, 127023), (273, 68397), (441, 42341), (637, 29313), (819, 22799), (1911, 9771), (3257, 5733)]