18831969

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2267}}^1$

素因数の和:2357

約数の個数: 24

約数和(自身を含む): 29719872

約数和(自身を除く): 10887903

約数列:

[1, 3, 9, 13, 39, 71, 117, 213, 639, 923, 2267, 2769, 6801, 8307, 20403, 29471, 88413, 160957, 265239, 482871, 1448613, 2092441, 6277323, 18831969]

約数ペア:

[(1, 18831969), (3, 6277323), (9, 2092441), (13, 1448613), (39, 482871), (71, 265239), (117, 160957), (213, 88413), (639, 29471), (923, 20403), (2267, 8307), (2769, 6801)]