20298285

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{64439}}^1$

素因数の和:64457

約数の個数: 24

約数和(自身を含む): 40210560

約数和(自身を除く): 19912275

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 64439, 193317, 322195, 451073, 579951, 966585, 1353219, 2255365, 2899755, 4059657, 6766095, 20298285]

約数ペア:

[(1, 20298285), (3, 6766095), (5, 4059657), (7, 2899755), (9, 2255365), (15, 1353219), (21, 966585), (35, 579951), (45, 451073), (63, 322195), (105, 193317), (315, 64439)]