81211767

素因数分解:

$3^1\times 7^3\times {\mathrm{13}}^2\times {\mathrm{467}}^1$

素因数の和:517

約数の個数: 48

約数和(自身を含む): 137030400

約数和(自身を除く): 55818633

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 169, 273, 343, 467, 507, 637, 1029, 1183, 1401, 1911, 3269, 3549, 4459, 6071, 8281, 9807, 13377, 18213, 22883, 24843, 42497, 57967, 68649, 78923, 127491, 160181, 173901, 236769, 297479, 480543, 552461, 892437, 1657383, 2082353, 3867227, 6247059, 11601681, 27070589, 81211767]

約数ペア:

[(1, 81211767), (3, 27070589), (7, 11601681), (13, 6247059), (21, 3867227), (39, 2082353), (49, 1657383), (91, 892437), (147, 552461), (169, 480543), (273, 297479), (343, 236769), (467, 173901), (507, 160181), (637, 127491), (1029, 78923), (1183, 68649), (1401, 57967), (1911, 42497), (3269, 24843), (3549, 22883), (4459, 18213), (6071, 13377), (8281, 9807)]