18819416

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:384

約数の個数: 64

約数和(自身を含む): 44513280

約数和(自身を除く): 25693864

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 137, 154, 223, 274, 308, 446, 548, 616, 892, 959, 1096, 1507, 1561, 1784, 1918, 2453, 3014, 3122, 3836, 4906, 6028, 6244, 7672, 9812, 10549, 12056, 12488, 17171, 19624, 21098, 30551, 34342, 42196, 61102, 68684, 84392, 122204, 137368, 213857, 244408, 336061, 427714, 672122, 855428, 1344244, 1710856, 2352427, 2688488, 4704854, 9409708, 18819416]

約数ペア:

[(1, 18819416), (2, 9409708), (4, 4704854), (7, 2688488), (8, 2352427), (11, 1710856), (14, 1344244), (22, 855428), (28, 672122), (44, 427714), (56, 336061), (77, 244408), (88, 213857), (137, 137368), (154, 122204), (223, 84392), (274, 68684), (308, 61102), (446, 42196), (548, 34342), (616, 30551), (892, 21098), (959, 19624), (1096, 17171), (1507, 12488), (1561, 12056), (1784, 10549), (1918, 9812), (2453, 7672), (3014, 6244), (3122, 6028), (3836, 4906)]