25738293

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{257}}^1$

素因数の和:537

約数の個数: 32

約数和(自身を含む): 41610240

約数和(自身を除く): 15871947

約数列:

[1, 3, 7, 19, 21, 57, 133, 251, 257, 399, 753, 771, 1757, 1799, 4769, 4883, 5271, 5397, 14307, 14649, 33383, 34181, 64507, 100149, 102543, 193521, 451549, 1225633, 1354647, 3676899, 8579431, 25738293]

約数ペア:

[(1, 25738293), (3, 8579431), (7, 3676899), (19, 1354647), (21, 1225633), (57, 451549), (133, 193521), (251, 102543), (257, 100149), (399, 64507), (753, 34181), (771, 33383), (1757, 14649), (1799, 14307), (4769, 5397), (4883, 5271)]