1547672721

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3878879}}^1$

素因数の和:3878908

約数の個数: 16

約数和(自身を含む): 2482483200

約数和(自身を除く): 934810479

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 3878879, 11636637, 27152153, 73698701, 81456459, 221096103, 515890907, 1547672721]

約数ペア:

[(1, 1547672721), (3, 515890907), (7, 221096103), (19, 81456459), (21, 73698701), (57, 27152153), (133, 11636637), (399, 3878879)]