21449765

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{5507}}^1$

素因数の和:5572

約数の個数: 16

約数和(自身を含む): 27760320

約数和(自身を除く): 6310555

約数列:

[1, 5, 19, 41, 95, 205, 779, 3895, 5507, 27535, 104633, 225787, 523165, 1128935, 4289953, 21449765]

約数ペア:

[(1, 21449765), (5, 4289953), (19, 1128935), (41, 523165), (95, 225787), (205, 104633), (779, 27535), (3895, 5507)]