211326843

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{5569}}^1$

素因数の和:5731

約数の個数: 32

約数和(自身を含む): 349350400

約数和(自身を除く): 138023557

約数列:

[1, 3, 7, 13, 21, 39, 91, 139, 273, 417, 973, 1807, 2919, 5421, 5569, 12649, 16707, 37947, 38983, 72397, 116949, 217191, 506779, 774091, 1520337, 2322273, 5418637, 10063183, 16255911, 30189549, 70442281, 211326843]

約数ペア:

[(1, 211326843), (3, 70442281), (7, 30189549), (13, 16255911), (21, 10063183), (39, 5418637), (91, 2322273), (139, 1520337), (273, 774091), (417, 506779), (973, 217191), (1807, 116949), (2919, 72397), (5421, 38983), (5569, 37947), (12649, 16707)]