638548566

素因数分解:

$2^1\times 3^1\times {\mathrm{1999}}^1\times {\mathrm{53239}}^1$

素因数の和:55243

約数の個数: 16

約数和(自身を含む): 1277760000

約数和(自身を除く): 639211434

約数列:

[1, 2, 3, 6, 1999, 3998, 5997, 11994, 53239, 106478, 159717, 319434, 106424761, 212849522, 319274283, 638548566]

約数ペア:

[(1, 638548566), (2, 319274283), (3, 212849522), (6, 106424761), (1999, 319434), (3998, 159717), (5997, 106478), (11994, 53239)]