20881095

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1787}}^1$

素因数の和:1855

約数の個数: 32

約数和(自身を含む): 36046080

約数和(自身を除く): 15164985

約数列:

[1, 3, 5, 15, 19, 41, 57, 95, 123, 205, 285, 615, 779, 1787, 2337, 3895, 5361, 8935, 11685, 26805, 33953, 73267, 101859, 169765, 219801, 366335, 509295, 1099005, 1392073, 4176219, 6960365, 20881095]

約数ペア:

[(1, 20881095), (3, 6960365), (5, 4176219), (15, 1392073), (19, 1099005), (41, 509295), (57, 366335), (95, 219801), (123, 169765), (205, 101859), (285, 73267), (615, 33953), (779, 26805), (1787, 11685), (2337, 8935), (3895, 5361)]