71781981

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{23761}}^1$

素因数の和:23836

約数の個数: 16

約数和(自身を含む): 102651840

約数和(自身を除く): 30869859

約数列:

[1, 3, 19, 53, 57, 159, 1007, 3021, 23761, 71283, 451459, 1259333, 1354377, 3777999, 23927327, 71781981]

約数ペア:

[(1, 71781981), (3, 23927327), (19, 3777999), (53, 1354377), (57, 1259333), (159, 451459), (1007, 71283), (3021, 23761)]