21158085

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108503}}^1$

素因数の和:108524

約数の個数: 16

約数和(自身を含む): 36457344

約数和(自身を除く): 15299259

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 108503, 325509, 542515, 1410539, 1627545, 4231617, 7052695, 21158085]

約数ペア:

[(1, 21158085), (3, 7052695), (5, 4231617), (13, 1627545), (15, 1410539), (39, 542515), (65, 325509), (195, 108503)]