31481931

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{21817}}^1$

素因数の和:21870

約数の個数: 16

約数和(自身を含む): 46428704

約数和(自身を除く): 14946773

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 21817, 65451, 283621, 807229, 850863, 2421687, 10493977, 31481931]

約数ペア:

[(1, 31481931), (3, 10493977), (13, 2421687), (37, 850863), (39, 807229), (111, 283621), (481, 65451), (1443, 21817)]