208163978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{72229}}^1$

素因数の和:72373

約数の個数: 16

約数和(自身を含む): 343236960

約数和(自身を除く): 135072982

約数列:

[1, 2, 11, 22, 131, 262, 1441, 2882, 72229, 144458, 794519, 1589038, 9461999, 18923998, 104081989, 208163978]

約数ペア:

[(1, 208163978), (2, 104081989), (11, 18923998), (22, 9461999), (131, 1589038), (262, 794519), (1441, 144458), (2882, 72229)]