20378685

素因数分解:

$3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{12697}}^1$

素因数の和:12812

約数の個数: 16

約数和(自身を含む): 32913216

約数和(自身を除く): 12534531

約数列:

[1, 3, 5, 15, 107, 321, 535, 1605, 12697, 38091, 63485, 190455, 1358579, 4075737, 6792895, 20378685]

約数ペア:

[(1, 20378685), (3, 6792895), (5, 4075737), (15, 1358579), (107, 190455), (321, 63485), (535, 38091), (1605, 12697)]