128512899

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{33757}}^1$

素因数の和:33816

約数の個数: 20

約数和(自身を含む): 196066464

約数和(自身を除く): 67553565

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 33757, 101271, 303813, 911439, 1586579, 2734317, 4759737, 14279211, 42837633, 128512899]

約数ペア:

[(1, 128512899), (3, 42837633), (9, 14279211), (27, 4759737), (47, 2734317), (81, 1586579), (141, 911439), (423, 303813), (1269, 101271), (3807, 33757)]