20568147

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:259

約数の個数: 32

約数和(自身を含む): 30336768

約数和(自身を除く): 9768621

約数列:

[1, 3, 17, 43, 51, 83, 113, 129, 249, 339, 731, 1411, 1921, 2193, 3569, 4233, 4859, 5763, 9379, 10707, 14577, 28137, 60673, 82603, 159443, 182019, 247809, 403297, 478329, 1209891, 6856049, 20568147]

約数ペア:

[(1, 20568147), (3, 6856049), (17, 1209891), (43, 478329), (51, 403297), (83, 247809), (113, 182019), (129, 159443), (249, 82603), (339, 60673), (731, 28137), (1411, 14577), (1921, 10707), (2193, 9379), (3569, 5763), (4233, 4859)]