19860729

素因数分解:

$3^1\times 7^3\times {\mathrm{19301}}^1$

素因数の和:19325

約数の個数: 16

約数和(自身を含む): 30883200

約数和(自身を除く): 11022471

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 19301, 57903, 135107, 405321, 945749, 2837247, 6620243, 19860729]

約数ペア:

[(1, 19860729), (3, 6620243), (7, 2837247), (21, 945749), (49, 405321), (147, 135107), (343, 57903), (1029, 19301)]