20987446

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{751}}^1$

素因数の和:999

約数の個数: 16

約数和(自身を含む): 32080320

約数和(自身を除く): 11092874

約数列:

[1, 2, 89, 157, 178, 314, 751, 1502, 13973, 27946, 66839, 117907, 133678, 235814, 10493723, 20987446]

約数ペア:

[(1, 20987446), (2, 10493723), (89, 235814), (157, 133678), (178, 117907), (314, 66839), (751, 27946), (1502, 13973)]