21389613

素因数分解:

$3^1\times 7^1\times {\mathrm{701}}^1\times {\mathrm{1453}}^1$

素因数の和:2164

約数の個数: 16

約数和(自身を含む): 32662656

約数和(自身を除く): 11273043

約数列:

[1, 3, 7, 21, 701, 1453, 2103, 4359, 4907, 10171, 14721, 30513, 1018553, 3055659, 7129871, 21389613]

約数ペア:

[(1, 21389613), (3, 7129871), (7, 3055659), (21, 1018553), (701, 30513), (1453, 14721), (2103, 10171), (4359, 4907)]