66931281

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{1523}}^1$

素因数の和:1805

約数の個数: 24

約数和(自身を含む): 102229920

約数和(自身を除く): 35298639

約数列:

[1, 3, 9, 19, 57, 171, 257, 771, 1523, 2313, 4569, 4883, 13707, 14649, 28937, 43947, 86811, 260433, 391411, 1174233, 3522699, 7436809, 22310427, 66931281]

約数ペア:

[(1, 66931281), (3, 22310427), (9, 7436809), (19, 3522699), (57, 1174233), (171, 391411), (257, 260433), (771, 86811), (1523, 43947), (2313, 28937), (4569, 14649), (4883, 13707)]