20876769

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{883}}^1$

素因数の和:997

約数の個数: 24

約数和(自身を含む): 31442112

約数和(自身を除く): 10565343

約数列:

[1, 3, 9, 37, 71, 111, 213, 333, 639, 883, 2627, 2649, 7881, 7947, 23643, 32671, 62693, 98013, 188079, 294039, 564237, 2319641, 6958923, 20876769]

約数ペア:

[(1, 20876769), (3, 6958923), (9, 2319641), (37, 564237), (71, 294039), (111, 188079), (213, 98013), (333, 62693), (639, 32671), (883, 23643), (2627, 7947), (2649, 7881)]