18642268

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 37255680

約数和(自身を除く): 18613412

約数列:

[1, 2, 4, 17, 19, 34, 38, 47, 68, 76, 94, 188, 307, 323, 614, 646, 799, 893, 1228, 1292, 1598, 1786, 3196, 3572, 5219, 5833, 10438, 11666, 14429, 15181, 20876, 23332, 28858, 30362, 57716, 60724, 99161, 198322, 245293, 274151, 396644, 490586, 548302, 981172, 1096604, 4660567, 9321134, 18642268]

約数ペア:

[(1, 18642268), (2, 9321134), (4, 4660567), (17, 1096604), (19, 981172), (34, 548302), (38, 490586), (47, 396644), (68, 274151), (76, 245293), (94, 198322), (188, 99161), (307, 60724), (323, 57716), (614, 30362), (646, 28858), (799, 23332), (893, 20876), (1228, 15181), (1292, 14429), (1598, 11666), (1786, 10438), (3196, 5833), (3572, 5219)]