156980997

素因数分解:

$3^4\times {\mathrm{257}}^1\times {\mathrm{7541}}^1$

素因数の和:7810

約数の個数: 20

約数和(自身を含む): 235446156

約数和(自身を除く): 78465159

約数列:

[1, 3, 9, 27, 81, 257, 771, 2313, 6939, 7541, 20817, 22623, 67869, 203607, 610821, 1938037, 5814111, 17442333, 52326999, 156980997]

約数ペア:

[(1, 156980997), (3, 52326999), (9, 17442333), (27, 5814111), (81, 1938037), (257, 610821), (771, 203607), (2313, 67869), (6939, 22623), (7541, 20817)]