20472471

素因数分解:

$3^2\times {\mathrm{17}}^3\times {\mathrm{463}}^1$

素因数の和:520

約数の個数: 24

約数和(自身を含む): 31487040

約数和(自身を除く): 11014569

約数列:

[1, 3, 9, 17, 51, 153, 289, 463, 867, 1389, 2601, 4167, 4913, 7871, 14739, 23613, 44217, 70839, 133807, 401421, 1204263, 2274719, 6824157, 20472471]

約数ペア:

[(1, 20472471), (3, 6824157), (9, 2274719), (17, 1204263), (51, 401421), (153, 133807), (289, 70839), (463, 44217), (867, 23613), (1389, 14739), (2601, 7871), (4167, 4913)]