19431915

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{641}}^1$

素因数の和:739

約数の個数: 32

約数和(自身を含む): 32541696

約数和(自身を除く): 13109781

約数列:

[1, 3, 5, 15, 43, 47, 129, 141, 215, 235, 641, 645, 705, 1923, 2021, 3205, 6063, 9615, 10105, 27563, 30127, 30315, 82689, 90381, 137815, 150635, 413445, 451905, 1295461, 3886383, 6477305, 19431915]

約数ペア:

[(1, 19431915), (3, 6477305), (5, 3886383), (15, 1295461), (43, 451905), (47, 413445), (129, 150635), (141, 137815), (215, 90381), (235, 82689), (641, 30315), (645, 30127), (705, 27563), (1923, 10105), (2021, 9615), (3205, 6063)]