20720595

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{197339}}^1$

素因数の和:197354

約数の個数: 16

約数和(自身を含む): 37889280

約数和(自身を除く): 17168685

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 197339, 592017, 986695, 1381373, 2960085, 4144119, 6906865, 20720595]

約数ペア:

[(1, 20720595), (3, 6906865), (5, 4144119), (7, 2960085), (15, 1381373), (21, 986695), (35, 592017), (105, 197339)]