1381779

素因数分解:

$3^4\times 7^1\times {\mathrm{2437}}^1$

素因数の和:2456

約数の個数: 20

約数和(自身を含む): 2359984

約数和(自身を除く): 978205

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 2437, 7311, 17059, 21933, 51177, 65799, 153531, 197397, 460593, 1381779]

約数ペア:

[(1, 1381779), (3, 460593), (7, 197397), (9, 153531), (21, 65799), (27, 51177), (63, 21933), (81, 17059), (189, 7311), (567, 2437)]