42539721

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 66613248

約数和(自身を除く): 24073527

約数列:

[1, 3, 7, 21, 71, 103, 213, 277, 309, 497, 721, 831, 1491, 1939, 2163, 5817, 7313, 19667, 21939, 28531, 51191, 59001, 85593, 137669, 153573, 199717, 413007, 599151, 2025701, 6077103, 14179907, 42539721]

約数ペア:

[(1, 42539721), (3, 14179907), (7, 6077103), (21, 2025701), (71, 599151), (103, 413007), (213, 199717), (277, 153573), (309, 137669), (497, 85593), (721, 59001), (831, 51191), (1491, 28531), (1939, 21939), (2163, 19667), (5817, 7313)]