18877086

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^3\times {\mathrm{43}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 43346160

約数和(自身を除く): 24469074

約数列:

[1, 2, 3, 6, 9, 18, 29, 43, 58, 86, 87, 129, 174, 258, 261, 387, 522, 774, 841, 1247, 1682, 2494, 2523, 3741, 5046, 7482, 7569, 11223, 15138, 22446, 24389, 36163, 48778, 72326, 73167, 108489, 146334, 216978, 219501, 325467, 439002, 650934, 1048727, 2097454, 3146181, 6292362, 9438543, 18877086]

約数ペア:

[(1, 18877086), (2, 9438543), (3, 6292362), (6, 3146181), (9, 2097454), (18, 1048727), (29, 650934), (43, 439002), (58, 325467), (86, 219501), (87, 216978), (129, 146334), (174, 108489), (258, 73167), (261, 72326), (387, 48778), (522, 36163), (774, 24389), (841, 22446), (1247, 15138), (1682, 11223), (2494, 7569), (2523, 7482), (3741, 5046)]