18042458

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{571}}^1$

素因数の和:678

約数の個数: 32

約数和(自身を含む): 32343168

約数和(自身を除く): 14300710

約数列:

[1, 2, 7, 14, 37, 61, 74, 122, 259, 427, 518, 571, 854, 1142, 2257, 3997, 4514, 7994, 15799, 21127, 31598, 34831, 42254, 69662, 147889, 243817, 295778, 487634, 1288747, 2577494, 9021229, 18042458]

約数ペア:

[(1, 18042458), (2, 9021229), (7, 2577494), (14, 1288747), (37, 487634), (61, 295778), (74, 243817), (122, 147889), (259, 69662), (427, 42254), (518, 34831), (571, 31598), (854, 21127), (1142, 15799), (2257, 7994), (3997, 4514)]