19810042

素因数分解:

$2^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{8681}}^1$

素因数の和:8853

約数の個数: 16

約数和(自身を含む): 34172352

約数和(自身を除く): 14362310

約数列:

[1, 2, 7, 14, 163, 326, 1141, 2282, 8681, 17362, 60767, 121534, 1415003, 2830006, 9905021, 19810042]

約数ペア:

[(1, 19810042), (2, 9905021), (7, 2830006), (14, 1415003), (163, 121534), (326, 60767), (1141, 17362), (2282, 8681)]