18412779

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{193}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 31847040

約数和(自身を除く): 13434261

約数列:

[1, 3, 7, 11, 21, 33, 49, 59, 77, 147, 177, 193, 231, 413, 539, 579, 649, 1239, 1351, 1617, 1947, 2123, 2891, 4053, 4543, 6369, 8673, 9457, 11387, 13629, 14861, 28371, 31801, 34161, 44583, 79709, 95403, 104027, 125257, 239127, 312081, 375771, 557963, 876799, 1673889, 2630397, 6137593, 18412779]

約数ペア:

[(1, 18412779), (3, 6137593), (7, 2630397), (11, 1673889), (21, 876799), (33, 557963), (49, 375771), (59, 312081), (77, 239127), (147, 125257), (177, 104027), (193, 95403), (231, 79709), (413, 44583), (539, 34161), (579, 31801), (649, 28371), (1239, 14861), (1351, 13629), (1617, 11387), (1947, 9457), (2123, 8673), (2891, 6369), (4053, 4543)]