20780494

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{87313}}^1$

素因数の和:87339

約数の個数: 16

約数和(自身を含む): 37719648

約数和(自身を除く): 16939154

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 87313, 174626, 611191, 1222382, 1484321, 2968642, 10390247, 20780494]

約数ペア:

[(1, 20780494), (2, 10390247), (7, 2968642), (14, 1484321), (17, 1222382), (34, 611191), (119, 174626), (238, 87313)]