31157295

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6947}}^1$

素因数の和:6991

約数の個数: 32

約数和(自身を含む): 56028672

約数和(自身を除く): 24871377

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4485, 6947, 20841, 34735, 90311, 104205, 159781, 270933, 451555, 479343, 798905, 1354665, 2077153, 2396715, 6231459, 10385765, 31157295]

約数ペア:

[(1, 31157295), (3, 10385765), (5, 6231459), (13, 2396715), (15, 2077153), (23, 1354665), (39, 798905), (65, 479343), (69, 451555), (115, 270933), (195, 159781), (299, 104205), (345, 90311), (897, 34735), (1495, 20841), (4485, 6947)]