19991188

素因数分解:

$2^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{4127}}^1$

素因数の和:4311

約数の個数: 24

約数和(自身を含む): 40223232

約数和(自身を除く): 20232044

約数列:

[1, 2, 4, 7, 14, 28, 173, 346, 692, 1211, 2422, 4127, 4844, 8254, 16508, 28889, 57778, 115556, 713971, 1427942, 2855884, 4997797, 9995594, 19991188]

約数ペア:

[(1, 19991188), (2, 9995594), (4, 4997797), (7, 2855884), (14, 1427942), (28, 713971), (173, 115556), (346, 57778), (692, 28889), (1211, 16508), (2422, 8254), (4127, 4844)]