21710672

素因数分解:

$2^4\times {\mathrm{997}}^1\times {\mathrm{1361}}^1$

素因数の和:2366

約数の個数: 20

約数和(自身を含む): 42137556

約数和(自身を除く): 20426884

約数列:

[1, 2, 4, 8, 16, 997, 1361, 1994, 2722, 3988, 5444, 7976, 10888, 15952, 21776, 1356917, 2713834, 5427668, 10855336, 21710672]

約数ペア:

[(1, 21710672), (2, 10855336), (4, 5427668), (8, 2713834), (16, 1356917), (997, 21776), (1361, 15952), (1994, 10888), (2722, 7976), (3988, 5444)]