1115555721

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2795879}}^1$

素因数の和:2795908

約数の個数: 16

約数和(自身を含む): 1789363200

約数和(自身を除く): 673807479

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 2795879, 8387637, 19571153, 53121701, 58713459, 159365103, 371851907, 1115555721]

約数ペア:

[(1, 1115555721), (3, 371851907), (7, 159365103), (19, 58713459), (21, 53121701), (57, 19571153), (133, 8387637), (399, 2795879)]