18486369

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 31000320

約数和(自身を除く): 12513951

約数列:

[1, 3, 9, 11, 29, 33, 47, 87, 99, 137, 141, 261, 319, 411, 423, 517, 957, 1233, 1363, 1507, 1551, 2871, 3973, 4089, 4521, 4653, 6439, 11919, 12267, 13563, 14993, 19317, 35757, 43703, 44979, 57951, 70829, 131109, 134937, 186731, 212487, 393327, 560193, 637461, 1680579, 2054041, 6162123, 18486369]

約数ペア:

[(1, 18486369), (3, 6162123), (9, 2054041), (11, 1680579), (29, 637461), (33, 560193), (47, 393327), (87, 212487), (99, 186731), (137, 134937), (141, 131109), (261, 70829), (319, 57951), (411, 44979), (423, 43703), (517, 35757), (957, 19317), (1233, 14993), (1363, 13563), (1507, 12267), (1551, 11919), (2871, 6439), (3973, 4653), (4089, 4521)]