69721431

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2543}}^1$

素因数の和:2615

約数の個数: 32

約数和(自身を含む): 108272640

約数和(自身を除く): 38551209

約数列:

[1, 3, 13, 19, 37, 39, 57, 111, 247, 481, 703, 741, 1443, 2109, 2543, 7629, 9139, 27417, 33059, 48317, 94091, 99177, 144951, 282273, 628121, 1223183, 1787729, 1884363, 3669549, 5363187, 23240477, 69721431]

約数ペア:

[(1, 69721431), (3, 23240477), (13, 5363187), (19, 3669549), (37, 1884363), (39, 1787729), (57, 1223183), (111, 628121), (247, 282273), (481, 144951), (703, 99177), (741, 94091), (1443, 48317), (2109, 33059), (2543, 27417), (7629, 9139)]