18859563

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2939}}^1$

素因数の和:2999

約数の個数: 24

約数和(自身を含む): 29352960

約数和(自身を除く): 10493397

約数列:

[1, 3, 9, 23, 31, 69, 93, 207, 279, 713, 2139, 2939, 6417, 8817, 26451, 67597, 91109, 202791, 273327, 608373, 819981, 2095507, 6286521, 18859563]

約数ペア:

[(1, 18859563), (3, 6286521), (9, 2095507), (23, 819981), (31, 608373), (69, 273327), (93, 202791), (207, 91109), (279, 67597), (713, 26451), (2139, 8817), (2939, 6417)]