21303686

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{509}}^1\times {\mathrm{1231}}^1$

素因数の和:1759

約数の個数: 16

約数和(自身を含む): 33929280

約数和(自身を除く): 12625594

約数列:

[1, 2, 17, 34, 509, 1018, 1231, 2462, 8653, 17306, 20927, 41854, 626579, 1253158, 10651843, 21303686]

約数ペア:

[(1, 21303686), (2, 10651843), (17, 1253158), (34, 626579), (509, 41854), (1018, 20927), (1231, 17306), (2462, 8653)]