18937281

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{30203}}^1$

素因数の和:30236

約数の個数: 16

約数和(自身を含む): 28995840

約数和(自身を除く): 10058559

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 30203, 90609, 332233, 573857, 996699, 1721571, 6312427, 18937281]

約数ペア:

[(1, 18937281), (3, 6312427), (11, 1721571), (19, 996699), (33, 573857), (57, 332233), (209, 90609), (627, 30203)]