20806485

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6833}}^1$

素因数の和:6877

約数の個数: 32

約数和(自身を含む): 39363840

約数和(自身を除く): 18557355

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 87, 105, 145, 203, 435, 609, 1015, 3045, 6833, 20499, 34165, 47831, 102495, 143493, 198157, 239155, 594471, 717465, 990785, 1387099, 2972355, 4161297, 6935495, 20806485]

約数ペア:

[(1, 20806485), (3, 6935495), (5, 4161297), (7, 2972355), (15, 1387099), (21, 990785), (29, 717465), (35, 594471), (87, 239155), (105, 198157), (145, 143493), (203, 102495), (435, 47831), (609, 34165), (1015, 20499), (3045, 6833)]