21308078

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{26177}}^1$

素因数の和:26227

約数の個数: 16

約数和(自身を含む): 35811504

約数和(自身を除く): 14503426

約数列:

[1, 2, 11, 22, 37, 74, 407, 814, 26177, 52354, 287947, 575894, 968549, 1937098, 10654039, 21308078]

約数ペア:

[(1, 21308078), (2, 10654039), (11, 1937098), (22, 968549), (37, 575894), (74, 287947), (407, 52354), (814, 26177)]