16990407

素因数分解:

$3^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{653}}^1$

素因数の和:732

約数の個数: 36

約数和(自身を含む): 29076840

約数和(自身を除く): 12086433

約数列:

[1, 3, 7, 9, 21, 49, 59, 63, 147, 177, 413, 441, 531, 653, 1239, 1959, 2891, 3717, 4571, 5877, 8673, 13713, 26019, 31997, 38527, 41139, 95991, 115581, 269689, 287973, 346743, 809067, 1887823, 2427201, 5663469, 16990407]

約数ペア:

[(1, 16990407), (3, 5663469), (7, 2427201), (9, 1887823), (21, 809067), (49, 346743), (59, 287973), (63, 269689), (147, 115581), (177, 95991), (413, 41139), (441, 38527), (531, 31997), (653, 26019), (1239, 13713), (1959, 8673), (2891, 5877), (3717, 4571)]