257787153

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{521}}^1\times {\mathrm{4229}}^1$

素因数の和:4769

約数の個数: 24

約数和(自身を含む): 401866920

約数和(自身を除く): 144079767

約数列:

[1, 3, 9, 13, 39, 117, 521, 1563, 4229, 4689, 6773, 12687, 20319, 38061, 54977, 60957, 164931, 494793, 2203309, 6609927, 19829781, 28643017, 85929051, 257787153]

約数ペア:

[(1, 257787153), (3, 85929051), (9, 28643017), (13, 19829781), (39, 6609927), (117, 2203309), (521, 494793), (1563, 164931), (4229, 60957), (4689, 54977), (6773, 38061), (12687, 20319)]