19745853

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{881}}^1$

素因数の和:1156

約数の個数: 16

約数和(自身を含む): 27320832

約数和(自身を除く): 7574979

約数列:

[1, 3, 31, 93, 241, 723, 881, 2643, 7471, 22413, 27311, 81933, 212321, 636963, 6581951, 19745853]

約数ペア:

[(1, 19745853), (3, 6581951), (31, 636963), (93, 212321), (241, 81933), (723, 27311), (881, 22413), (2643, 7471)]