1396752417

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{257371}}^1$

素因数の和:257450

約数の個数: 20

約数和(自身を含む): 2117656816

約数和(自身を除く): 720904399

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 257371, 772113, 2316339, 6949017, 17243857, 20847051, 51731571, 155194713, 465584139, 1396752417]

約数ペア:

[(1, 1396752417), (3, 465584139), (9, 155194713), (27, 51731571), (67, 20847051), (81, 17243857), (201, 6949017), (603, 2316339), (1809, 772113), (5427, 257371)]