18770283

素因数分解:

$3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1373}}^1$

素因数の和:1424

約数の個数: 36

約数和(自身を含む): 32580288

約数和(自身を除く): 13810005

約数列:

[1, 3, 7, 9, 21, 31, 49, 63, 93, 147, 217, 279, 441, 651, 1373, 1519, 1953, 4119, 4557, 9611, 12357, 13671, 28833, 42563, 67277, 86499, 127689, 201831, 297941, 383067, 605493, 893823, 2085587, 2681469, 6256761, 18770283]

約数ペア:

[(1, 18770283), (3, 6256761), (7, 2681469), (9, 2085587), (21, 893823), (31, 605493), (49, 383067), (63, 297941), (93, 201831), (147, 127689), (217, 86499), (279, 67277), (441, 42563), (651, 28833), (1373, 13671), (1519, 12357), (1953, 9611), (4119, 4557)]