19981254

素因数分解:

$2^1\times 3^1\times {\mathrm{83}}^1\times {\mathrm{40123}}^1$

素因数の和:40211

約数の個数: 16

約数和(自身を含む): 40444992

約数和(自身を除く): 20463738

約数列:

[1, 2, 3, 6, 83, 166, 249, 498, 40123, 80246, 120369, 240738, 3330209, 6660418, 9990627, 19981254]

約数ペア:

[(1, 19981254), (2, 9990627), (3, 6660418), (6, 3330209), (83, 240738), (166, 120369), (249, 80246), (498, 40123)]