19812564291

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{1266869}}^1$

素因数の和:1267286

約数の個数: 16

約数和(自身を含む): 28519777440

約数和(自身を除く): 8707213149

約数列:

[1, 3, 13, 39, 401, 1203, 5213, 15639, 1266869, 3800607, 16469297, 49407891, 508014469, 1524043407, 6604188097, 19812564291]

約数ペア:

[(1, 19812564291), (3, 6604188097), (13, 1524043407), (39, 508014469), (401, 49407891), (1203, 16469297), (5213, 3800607), (15639, 1266869)]