31663437

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 47308800

約数和(自身を除く): 15645363

約数列:

[1, 3, 13, 39, 43, 79, 129, 237, 239, 559, 717, 1027, 1677, 3081, 3107, 3397, 9321, 10191, 10277, 18881, 30831, 44161, 56643, 132483, 133601, 245453, 400803, 736359, 811883, 2435649, 10554479, 31663437]

約数ペア:

[(1, 31663437), (3, 10554479), (13, 2435649), (39, 811883), (43, 736359), (79, 400803), (129, 245453), (237, 133601), (239, 132483), (559, 56643), (717, 44161), (1027, 30831), (1677, 18881), (3081, 10277), (3107, 10191), (3397, 9321)]