20438768

素因数分解:

$2^4\times 7^1\times {\mathrm{182489}}^1$

素因数の和:182504

約数の個数: 20

約数和(自身を含む): 45257520

約数和(自身を除く): 24818752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 182489, 364978, 729956, 1277423, 1459912, 2554846, 2919824, 5109692, 10219384, 20438768]

約数ペア:

[(1, 20438768), (2, 10219384), (4, 5109692), (7, 2919824), (8, 2554846), (14, 1459912), (16, 1277423), (28, 729956), (56, 364978), (112, 182489)]