16840545

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 27941760

約数和(自身を除く): 11101215

約数列:

[1, 3, 5, 15, 41, 123, 139, 197, 205, 417, 591, 615, 695, 985, 2085, 2955, 5699, 8077, 17097, 24231, 27383, 28495, 40385, 82149, 85485, 121155, 136915, 410745, 1122703, 3368109, 5613515, 16840545]

約数ペア:

[(1, 16840545), (3, 5613515), (5, 3368109), (15, 1122703), (41, 410745), (123, 136915), (139, 121155), (197, 85485), (205, 82149), (417, 40385), (591, 28495), (615, 27383), (695, 24231), (985, 17097), (2085, 8077), (2955, 5699)]