18836922

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 42747264

約数和(自身を除く): 23910342

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 61, 74, 78, 107, 111, 122, 183, 214, 222, 321, 366, 481, 642, 793, 962, 1391, 1443, 1586, 2257, 2379, 2782, 2886, 3959, 4173, 4514, 4758, 6527, 6771, 7918, 8346, 11877, 13054, 13542, 19581, 23754, 29341, 39162, 51467, 58682, 84851, 88023, 102934, 154401, 169702, 176046, 241499, 254553, 308802, 482998, 509106, 724497, 1448994, 3139487, 6278974, 9418461, 18836922]

約数ペア:

[(1, 18836922), (2, 9418461), (3, 6278974), (6, 3139487), (13, 1448994), (26, 724497), (37, 509106), (39, 482998), (61, 308802), (74, 254553), (78, 241499), (107, 176046), (111, 169702), (122, 154401), (183, 102934), (214, 88023), (222, 84851), (321, 58682), (366, 51467), (481, 39162), (642, 29341), (793, 23754), (962, 19581), (1391, 13542), (1443, 13054), (1586, 11877), (2257, 8346), (2379, 7918), (2782, 6771), (2886, 6527), (3959, 4758), (4173, 4514)]