19862731

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{1153}}^1$

素因数の和:1290

約数の個数: 16

約数和(自身を含む): 23929344

約数和(自身を除く): 4066613

約数列:

[1, 7, 23, 107, 161, 749, 1153, 2461, 8071, 17227, 26519, 123371, 185633, 863597, 2837533, 19862731]

約数ペア:

[(1, 19862731), (7, 2837533), (23, 863597), (107, 185633), (161, 123371), (749, 26519), (1153, 17227), (2461, 8071)]