20657798

素因数分解:

$2^1\times 7^1\times {\mathrm{1117}}^1\times {\mathrm{1321}}^1$

素因数の和:2447

約数の個数: 16

約数和(自身を含む): 35471904

約数和(自身を除く): 14814106

約数列:

[1, 2, 7, 14, 1117, 1321, 2234, 2642, 7819, 9247, 15638, 18494, 1475557, 2951114, 10328899, 20657798]

約数ペア:

[(1, 20657798), (2, 10328899), (7, 2951114), (14, 1475557), (1117, 18494), (1321, 15638), (2234, 9247), (2642, 7819)]