20881567317

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{3851977}}^1$

素因数の和:3852132

約数の個数: 16

約数和(自身を含む): 30199507520

約数和(自身を除く): 9317940203

約数列:

[1, 3, 13, 39, 139, 417, 1807, 5421, 3851977, 11555931, 50075701, 150227103, 535424803, 1606274409, 6960522439, 20881567317]

約数ペア:

[(1, 20881567317), (3, 6960522439), (13, 1606274409), (39, 535424803), (139, 150227103), (417, 50075701), (1807, 11555931), (5421, 3851977)]