20615287

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{3389}}^1$

素因数の和:3486

約数の個数: 16

約数和(自身を含む): 26035200

約数和(自身を除く): 5419913

約数列:

[1, 7, 11, 77, 79, 553, 869, 3389, 6083, 23723, 37279, 260953, 267731, 1874117, 2945041, 20615287]

約数ペア:

[(1, 20615287), (7, 2945041), (11, 1874117), (77, 267731), (79, 260953), (553, 37279), (869, 23723), (3389, 6083)]