211729947

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{13339}}^1$

素因数の和:13403

約数の個数: 32

約数和(自身を含む): 340650240

約数和(自身を除く): 128920293

約数列:

[1, 3, 11, 13, 33, 37, 39, 111, 143, 407, 429, 481, 1221, 1443, 5291, 13339, 15873, 40017, 146729, 173407, 440187, 493543, 520221, 1480629, 1907477, 5428973, 5722431, 6416059, 16286919, 19248177, 70576649, 211729947]

約数ペア:

[(1, 211729947), (3, 70576649), (11, 19248177), (13, 16286919), (33, 6416059), (37, 5722431), (39, 5428973), (111, 1907477), (143, 1480629), (407, 520221), (429, 493543), (481, 440187), (1221, 173407), (1443, 146729), (5291, 40017), (13339, 15873)]