20742138

素因数分解:

$2^1\times 3^2\times {\mathrm{251}}^1\times {\mathrm{4591}}^1$

素因数の和:4850

約数の個数: 24

約数和(自身を含む): 45130176

約数和(自身を除く): 24388038

約数列:

[1, 2, 3, 6, 9, 18, 251, 502, 753, 1506, 2259, 4518, 4591, 9182, 13773, 27546, 41319, 82638, 1152341, 2304682, 3457023, 6914046, 10371069, 20742138]

約数ペア:

[(1, 20742138), (2, 10371069), (3, 6914046), (6, 3457023), (9, 2304682), (18, 1152341), (251, 82638), (502, 41319), (753, 27546), (1506, 13773), (2259, 9182), (4518, 4591)]