19899918

素因数分解:

$2^1\times 3^4\times {\mathrm{122839}}^1$

素因数の和:122853

約数の個数: 20

約数和(自身を含む): 44590920

約数和(自身を除く): 24691002

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 122839, 245678, 368517, 737034, 1105551, 2211102, 3316653, 6633306, 9949959, 19899918]

約数ペア:

[(1, 19899918), (2, 9949959), (3, 6633306), (6, 3316653), (9, 2211102), (18, 1105551), (27, 737034), (54, 368517), (81, 245678), (162, 122839)]