21090568

素因数分解:

$2^3\times {\mathrm{619}}^1\times {\mathrm{4259}}^1$

素因数の和:4884

約数の個数: 16

約数和(自身を含む): 39618000

約数和(自身を除く): 18527432

約数列:

[1, 2, 4, 8, 619, 1238, 2476, 4259, 4952, 8518, 17036, 34072, 2636321, 5272642, 10545284, 21090568]

約数ペア:

[(1, 21090568), (2, 10545284), (4, 5272642), (8, 2636321), (619, 34072), (1238, 17036), (2476, 8518), (4259, 4952)]