31371123

素因数分解:

$3^1\times 7^3\times {\mathrm{43}}^1\times {\mathrm{709}}^1$

素因数の和:776

約数の個数: 32

約数和(自身を含む): 49984000

約数和(自身を除く): 18612877

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 343, 709, 903, 1029, 2107, 2127, 4963, 6321, 14749, 14889, 30487, 34741, 44247, 91461, 104223, 213409, 243187, 640227, 729561, 1493863, 4481589, 10457041, 31371123]

約数ペア:

[(1, 31371123), (3, 10457041), (7, 4481589), (21, 1493863), (43, 729561), (49, 640227), (129, 243187), (147, 213409), (301, 104223), (343, 91461), (709, 44247), (903, 34741), (1029, 30487), (2107, 14889), (2127, 14749), (4963, 6321)]