208745487

素因数分解:

$3^2\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{1753}}^1$

素因数の和:1991

約数の個数: 24

約数和(自身を含む): 307006128

約数和(自身を除く): 98260641

約数列:

[1, 3, 9, 101, 131, 303, 393, 909, 1179, 1753, 5259, 13231, 15777, 39693, 119079, 177053, 229643, 531159, 688929, 1593477, 2066787, 23193943, 69581829, 208745487]

約数ペア:

[(1, 208745487), (3, 69581829), (9, 23193943), (101, 2066787), (131, 1593477), (303, 688929), (393, 531159), (909, 229643), (1179, 177053), (1753, 119079), (5259, 39693), (13231, 15777)]