19778451

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{85621}}^1$

素因数の和:85642

約数の個数: 16

約数和(自身を含む): 32878848

約数和(自身を除く): 13100397

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 85621, 256863, 599347, 941831, 1798041, 2825493, 6592817, 19778451]

約数ペア:

[(1, 19778451), (3, 6592817), (7, 2825493), (11, 1798041), (21, 941831), (33, 599347), (77, 256863), (231, 85621)]