20888415

素因数分解:

$3^3\times 5^1\times {\mathrm{359}}^1\times {\mathrm{431}}^1$

素因数の和:804

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 16436385

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 359, 431, 1077, 1293, 1795, 2155, 3231, 3879, 5385, 6465, 9693, 11637, 16155, 19395, 48465, 58185, 154729, 464187, 773645, 1392561, 2320935, 4177683, 6962805, 20888415]

約数ペア:

[(1, 20888415), (3, 6962805), (5, 4177683), (9, 2320935), (15, 1392561), (27, 773645), (45, 464187), (135, 154729), (359, 58185), (431, 48465), (1077, 19395), (1293, 16155), (1795, 11637), (2155, 9693), (3231, 6465), (3879, 5385)]