21608445

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{839}}^1$

素因数の和:965

約数の個数: 32

約数和(自身を含む): 37013760

約数和(自身を除く): 15405315

約数列:

[1, 3, 5, 15, 17, 51, 85, 101, 255, 303, 505, 839, 1515, 1717, 2517, 4195, 5151, 8585, 12585, 14263, 25755, 42789, 71315, 84739, 213945, 254217, 423695, 1271085, 1440563, 4321689, 7202815, 21608445]

約数ペア:

[(1, 21608445), (3, 7202815), (5, 4321689), (15, 1440563), (17, 1271085), (51, 423695), (85, 254217), (101, 213945), (255, 84739), (303, 71315), (505, 42789), (839, 25755), (1515, 14263), (1717, 12585), (2517, 8585), (4195, 5151)]