209964963

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{397}}^1$

素因数の和:675

約数の個数: 32

約数和(自身を含む): 308109312

約数和(自身を除く): 98144349

約数列:

[1, 3, 13, 39, 71, 191, 213, 397, 573, 923, 1191, 2483, 2769, 5161, 7449, 13561, 15483, 28187, 40683, 75827, 84561, 176293, 227481, 366431, 528879, 985751, 1099293, 2957253, 5383717, 16151151, 69988321, 209964963]

約数ペア:

[(1, 209964963), (3, 69988321), (13, 16151151), (39, 5383717), (71, 2957253), (191, 1099293), (213, 985751), (397, 528879), (573, 366431), (923, 227481), (1191, 176293), (2483, 84561), (2769, 75827), (5161, 40683), (7449, 28187), (13561, 15483)]