21561142

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{1901}}^1$

素因数の和:2063

約数の個数: 16

約数和(自身を含む): 33277392

約数和(自身を除く): 11716250

約数列:

[1, 2, 53, 106, 107, 214, 1901, 3802, 5671, 11342, 100753, 201506, 203407, 406814, 10780571, 21561142]

約数ペア:

[(1, 21561142), (2, 10780571), (53, 406814), (106, 203407), (107, 201506), (214, 100753), (1901, 11342), (3802, 5671)]