18999318

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{457}}^1$

素因数の和:529

約数の個数: 48

約数和(自身を含む): 42242256

約数和(自身を除く): 23242938

約数列:

[1, 2, 3, 6, 13, 26, 39, 41, 78, 82, 123, 169, 246, 338, 457, 507, 533, 914, 1014, 1066, 1371, 1599, 2742, 3198, 5941, 6929, 11882, 13858, 17823, 18737, 20787, 35646, 37474, 41574, 56211, 77233, 112422, 154466, 231699, 243581, 463398, 487162, 730743, 1461486, 3166553, 6333106, 9499659, 18999318]

約数ペア:

[(1, 18999318), (2, 9499659), (3, 6333106), (6, 3166553), (13, 1461486), (26, 730743), (39, 487162), (41, 463398), (78, 243581), (82, 231699), (123, 154466), (169, 112422), (246, 77233), (338, 56211), (457, 41574), (507, 37474), (533, 35646), (914, 20787), (1014, 18737), (1066, 17823), (1371, 13858), (1599, 11882), (2742, 6929), (3198, 5941)]