20408395

素因数分解:

$5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{9883}}^1$

素因数の和:9954

約数の個数: 16

約数和(自身を含む): 28465920

約数和(自身を除く): 8057525

約数列:

[1, 5, 7, 35, 59, 295, 413, 2065, 9883, 49415, 69181, 345905, 583097, 2915485, 4081679, 20408395]

約数ペア:

[(1, 20408395), (5, 4081679), (7, 2915485), (35, 583097), (59, 345905), (295, 69181), (413, 49415), (2065, 9883)]