1644543

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:348

約数の個数: 20

約数和(自身を含む): 2497440

約数和(自身を除く): 852897

約数列:

[1, 3, 9, 27, 79, 81, 237, 257, 711, 771, 2133, 2313, 6399, 6939, 20303, 20817, 60909, 182727, 548181, 1644543]

約数ペア:

[(1, 1644543), (3, 548181), (9, 182727), (27, 60909), (79, 20817), (81, 20303), (237, 6939), (257, 6399), (711, 2313), (771, 2133)]