1287804591

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{1321}}^1\times {\mathrm{5701}}^1$

素因数の和:7047

約数の個数: 24

約数和(自身を含む): 1959891440

約数和(自身を除く): 672086849

約数列:

[1, 3, 9, 19, 57, 171, 1321, 3963, 5701, 11889, 17103, 25099, 51309, 75297, 108319, 225891, 324957, 974871, 7531021, 22593063, 67779189, 143089399, 429268197, 1287804591]

約数ペア:

[(1, 1287804591), (3, 429268197), (9, 143089399), (19, 67779189), (57, 22593063), (171, 7531021), (1321, 974871), (3963, 324957), (5701, 225891), (11889, 108319), (17103, 75297), (25099, 51309)]