213991947

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{5881}}^1$

素因数の和:6211

約数の個数: 24

約数和(自身を含む): 334003488

約数和(自身を除く): 120011541

約数列:

[1, 3, 9, 13, 39, 117, 311, 933, 2799, 4043, 5881, 12129, 17643, 36387, 52929, 76453, 229359, 688077, 1828991, 5486973, 16460919, 23776883, 71330649, 213991947]

約数ペア:

[(1, 213991947), (3, 71330649), (9, 23776883), (13, 16460919), (39, 5486973), (117, 1828991), (311, 688077), (933, 229359), (2799, 76453), (4043, 52929), (5881, 36387), (12129, 17643)]