20211295

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2237}}^1$

素因数の和:2394

約数の個数: 16

約数和(自身を含む): 26318880

約数和(自身を除く): 6107585

約数列:

[1, 5, 13, 65, 139, 695, 1807, 2237, 9035, 11185, 29081, 145405, 310943, 1554715, 4042259, 20211295]

約数ペア:

[(1, 20211295), (5, 4042259), (13, 1554715), (65, 310943), (139, 145405), (695, 29081), (1807, 11185), (2237, 9035)]