31881447

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{6337}}^1$

素因数の和:6399

約数の個数: 24

約数和(自身を含む): 50754704

約数和(自身を除く): 18873257

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 5031, 6337, 19011, 57033, 82381, 247143, 272491, 741429, 817473, 2452419, 3542383, 10627149, 31881447]

約数ペア:

[(1, 31881447), (3, 10627149), (9, 3542383), (13, 2452419), (39, 817473), (43, 741429), (117, 272491), (129, 247143), (387, 82381), (559, 57033), (1677, 19011), (5031, 6337)]