81697275

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{11003}}^1$

素因数の和:11033

約数の個数: 48

約数和(自身を含む): 163739520

約数和(自身を除く): 82042245

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 135, 165, 225, 275, 297, 495, 675, 825, 1485, 2475, 7425, 11003, 33009, 55015, 99027, 121033, 165045, 275075, 297081, 363099, 495135, 605165, 825225, 1089297, 1485405, 1815495, 2475675, 3025825, 3267891, 5446485, 7427025, 9077475, 16339455, 27232425, 81697275]

約数ペア:

[(1, 81697275), (3, 27232425), (5, 16339455), (9, 9077475), (11, 7427025), (15, 5446485), (25, 3267891), (27, 3025825), (33, 2475675), (45, 1815495), (55, 1485405), (75, 1089297), (99, 825225), (135, 605165), (165, 495135), (225, 363099), (275, 297081), (297, 275075), (495, 165045), (675, 121033), (825, 99027), (1485, 55015), (2475, 33009), (7425, 11003)]