18154521

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:131

約数の個数: 96

約数和(自身を含む): 36661248

約数和(自身を除く): 18506727

約数列:

[1, 3, 7, 9, 11, 17, 21, 23, 33, 51, 63, 67, 69, 77, 99, 119, 153, 161, 187, 201, 207, 231, 253, 357, 391, 469, 483, 561, 603, 693, 737, 759, 1071, 1139, 1173, 1309, 1407, 1449, 1541, 1683, 1771, 2211, 2277, 2737, 3417, 3519, 3927, 4221, 4301, 4623, 5159, 5313, 6633, 7973, 8211, 10251, 10787, 11781, 12529, 12903, 13869, 15477, 15939, 16951, 23919, 24633, 26197, 30107, 32361, 37587, 38709, 46431, 50853, 71757, 78591, 87703, 90321, 97083, 112761, 118657, 152559, 183379, 235773, 263109, 270963, 288167, 355971, 550137, 789327, 864501, 1067913, 1650411, 2017169, 2593503, 6051507, 18154521]

約数ペア:

[(1, 18154521), (3, 6051507), (7, 2593503), (9, 2017169), (11, 1650411), (17, 1067913), (21, 864501), (23, 789327), (33, 550137), (51, 355971), (63, 288167), (67, 270963), (69, 263109), (77, 235773), (99, 183379), (119, 152559), (153, 118657), (161, 112761), (187, 97083), (201, 90321), (207, 87703), (231, 78591), (253, 71757), (357, 50853), (391, 46431), (469, 38709), (483, 37587), (561, 32361), (603, 30107), (693, 26197), (737, 24633), (759, 23919), (1071, 16951), (1139, 15939), (1173, 15477), (1309, 13869), (1407, 12903), (1449, 12529), (1541, 11781), (1683, 10787), (1771, 10251), (2211, 8211), (2277, 7973), (2737, 6633), (3417, 5313), (3519, 5159), (3927, 4623), (4221, 4301)]