201537921

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{271981}}^1$

素因数の和:272016

約数の個数: 16

約数和(自身を含む): 304619840

約数和(自身を除く): 103081919

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 271981, 815943, 3535753, 5167639, 10607259, 15502917, 67179307, 201537921]

約数ペア:

[(1, 201537921), (3, 67179307), (13, 15502917), (19, 10607259), (39, 5167639), (57, 3535753), (247, 815943), (741, 271981)]