156968339241

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{393404359}}^1$

素因数の和:393404388

約数の個数: 16

約数和(自身を含む): 251778790400

約数和(自身を除く): 94810451159

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 393404359, 1180213077, 2753830513, 7474682821, 8261491539, 22424048463, 52322779747, 156968339241]

約数ペア:

[(1, 156968339241), (3, 52322779747), (7, 22424048463), (19, 8261491539), (21, 7474682821), (57, 2753830513), (133, 1180213077), (399, 393404359)]