1557777231

素因数分解:

$3^3\times {\mathrm{809}}^1\times {\mathrm{71317}}^1$

素因数の和:72135

約数の個数: 16

約数和(自身を含む): 2310703200

約数和(自身を除く): 752925969

約数列:

[1, 3, 9, 27, 809, 2427, 7281, 21843, 71317, 213951, 641853, 1925559, 57695453, 173086359, 519259077, 1557777231]

約数ペア:

[(1, 1557777231), (3, 519259077), (9, 173086359), (27, 57695453), (809, 1925559), (2427, 641853), (7281, 213951), (21843, 71317)]