21759627

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{1279}}^1$

素因数の和:1442

約数の個数: 16

約数和(自身を含む): 29859840

約数和(自身を除く): 8100213

約数列:

[1, 3, 53, 107, 159, 321, 1279, 3837, 5671, 17013, 67787, 136853, 203361, 410559, 7253209, 21759627]

約数ペア:

[(1, 21759627), (3, 7253209), (53, 410559), (107, 203361), (159, 136853), (321, 67787), (1279, 17013), (3837, 5671)]