20383405

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{25321}}^1$

素因数の和:25356

約数の個数: 16

約数和(自身を含む): 29170944

約数和(自身を除く): 8787539

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 25321, 126605, 177247, 582383, 886235, 2911915, 4076681, 20383405]

約数ペア:

[(1, 20383405), (5, 4076681), (7, 2911915), (23, 886235), (35, 582383), (115, 177247), (161, 126605), (805, 25321)]