20681284

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{463}}^1\times {\mathrm{859}}^1$

素因数の和:1339

約数の個数: 24

約数和(自身を含む): 39105920

約数和(自身を除く): 18424636

約数列:

[1, 2, 4, 13, 26, 52, 463, 859, 926, 1718, 1852, 3436, 6019, 11167, 12038, 22334, 24076, 44668, 397717, 795434, 1590868, 5170321, 10340642, 20681284]

約数ペア:

[(1, 20681284), (2, 10340642), (4, 5170321), (13, 1590868), (26, 795434), (52, 397717), (463, 44668), (859, 24076), (926, 22334), (1718, 12038), (1852, 11167), (3436, 6019)]