18703143

素因数分解:

$3^4\times {\mathrm{233}}^1\times {\mathrm{991}}^1$

素因数の和:1236

約数の個数: 20

約数和(自身を含む): 28087488

約数和(自身を除く): 9384345

約数列:

[1, 3, 9, 27, 81, 233, 699, 991, 2097, 2973, 6291, 8919, 18873, 26757, 80271, 230903, 692709, 2078127, 6234381, 18703143]

約数ペア:

[(1, 18703143), (3, 6234381), (9, 2078127), (27, 692709), (81, 230903), (233, 80271), (699, 26757), (991, 18873), (2097, 8919), (2973, 6291)]