30971985

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{337}}^1\times {\mathrm{557}}^1$

素因数の和:913

約数の個数: 32

約数和(自身を含む): 54317952

約数和(自身を除く): 23345967

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 337, 557, 1011, 1671, 1685, 2785, 3707, 5055, 6127, 8355, 11121, 18381, 18535, 30635, 55605, 91905, 187709, 563127, 938545, 2064799, 2815635, 6194397, 10323995, 30971985]

約数ペア:

[(1, 30971985), (3, 10323995), (5, 6194397), (11, 2815635), (15, 2064799), (33, 938545), (55, 563127), (165, 187709), (337, 91905), (557, 55605), (1011, 30635), (1671, 18535), (1685, 18381), (2785, 11121), (3707, 8355), (5055, 6127)]