20992185

素因数分解:

$3^2\times 5^1\times {\mathrm{613}}^1\times {\mathrm{761}}^1$

素因数の和:1385

約数の個数: 24

約数和(自身を含む): 36493704

約数和(自身を除く): 15501519

約数列:

[1, 3, 5, 9, 15, 45, 613, 761, 1839, 2283, 3065, 3805, 5517, 6849, 9195, 11415, 27585, 34245, 466493, 1399479, 2332465, 4198437, 6997395, 20992185]

約数ペア:

[(1, 20992185), (3, 6997395), (5, 4198437), (9, 2332465), (15, 1399479), (45, 466493), (613, 34245), (761, 27585), (1839, 11415), (2283, 9195), (3065, 6849), (3805, 5517)]