20715585

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{563}}^1$

素因数の和:805

約数の個数: 32

約数和(自身を含む): 36384768

約数和(自身を除く): 15669183

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 223, 563, 669, 1115, 1689, 2453, 2815, 3345, 6193, 7359, 8445, 12265, 18579, 30965, 36795, 92895, 125549, 376647, 627745, 1381039, 1883235, 4143117, 6905195, 20715585]

約数ペア:

[(1, 20715585), (3, 6905195), (5, 4143117), (11, 1883235), (15, 1381039), (33, 627745), (55, 376647), (165, 125549), (223, 92895), (563, 36795), (669, 30965), (1115, 18579), (1689, 12265), (2453, 8445), (2815, 7359), (3345, 6193)]