42965517

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{419}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 69350400

約数和(自身を除く): 26384883

約数列:

[1, 3, 7, 19, 21, 57, 133, 257, 399, 419, 771, 1257, 1799, 2933, 4883, 5397, 7961, 8799, 14649, 23883, 34181, 55727, 102543, 107683, 167181, 323049, 753781, 2045977, 2261343, 6137931, 14321839, 42965517]

約数ペア:

[(1, 42965517), (3, 14321839), (7, 6137931), (19, 2261343), (21, 2045977), (57, 753781), (133, 323049), (257, 167181), (399, 107683), (419, 102543), (771, 55727), (1257, 34181), (1799, 23883), (2933, 14649), (4883, 8799), (5397, 7961)]