18671795

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{2111}}^1$

素因数の和:2206

約数の個数: 16

約数和(自身を含む): 23569920

約数和(自身を除く): 4898125

約数列:

[1, 5, 29, 61, 145, 305, 1769, 2111, 8845, 10555, 61219, 128771, 306095, 643855, 3734359, 18671795]

約数ペア:

[(1, 18671795), (5, 3734359), (29, 643855), (61, 306095), (145, 128771), (305, 61219), (1769, 10555), (2111, 8845)]