20654408

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{29009}}^1$

素因数の和:29104

約数の個数: 16

約数和(自身を含む): 39163500

約数和(自身を除く): 18509092

約数列:

[1, 2, 4, 8, 89, 178, 356, 712, 29009, 58018, 116036, 232072, 2581801, 5163602, 10327204, 20654408]

約数ペア:

[(1, 20654408), (2, 10327204), (4, 5163602), (8, 2581801), (89, 232072), (178, 116036), (356, 58018), (712, 29009)]