18986661

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^2\times {\mathrm{67}}^1$

素因数の和:170

約数の個数: 36

約数和(自身を含む): 29850912

約数和(自身を除く): 10864251

約数列:

[1, 3, 9, 23, 37, 67, 69, 111, 201, 207, 333, 603, 851, 1369, 1541, 2479, 2553, 4107, 4623, 7437, 7659, 12321, 13869, 22311, 31487, 57017, 91723, 94461, 171051, 275169, 283383, 513153, 825507, 2109629, 6328887, 18986661]

約数ペア:

[(1, 18986661), (3, 6328887), (9, 2109629), (23, 825507), (37, 513153), (67, 283383), (69, 275169), (111, 171051), (201, 94461), (207, 91723), (333, 57017), (603, 31487), (851, 22311), (1369, 13869), (1541, 12321), (2479, 7659), (2553, 7437), (4107, 4623)]