18271989

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{829}}^1$

素因数の和:945

約数の個数: 24

約数和(自身を含む): 27622400

約数和(自身を除く): 9350411

約数列:

[1, 3, 9, 31, 79, 93, 237, 279, 711, 829, 2449, 2487, 7347, 7461, 22041, 25699, 65491, 77097, 196473, 231291, 589419, 2030221, 6090663, 18271989]

約数ペア:

[(1, 18271989), (3, 6090663), (9, 2030221), (31, 589419), (79, 231291), (93, 196473), (237, 77097), (279, 65491), (711, 25699), (829, 22041), (2449, 7461), (2487, 7347)]