1394739

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{257}}^1$

素因数の和:336

約数の個数: 20

約数和(自身を含む): 2122824

約数和(自身を除く): 728085

約数列:

[1, 3, 9, 27, 67, 81, 201, 257, 603, 771, 1809, 2313, 5427, 6939, 17219, 20817, 51657, 154971, 464913, 1394739]

約数ペア:

[(1, 1394739), (3, 464913), (9, 154971), (27, 51657), (67, 20817), (81, 17219), (201, 6939), (257, 5427), (603, 2313), (771, 1809)]