400581009

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{881}}^1\times {\mathrm{2659}}^1$

素因数の和:3565

約数の個数: 24

約数和(自身を含む): 609991200

約数和(自身を除く): 209410191

約数列:

[1, 3, 9, 19, 57, 171, 881, 2643, 2659, 7929, 7977, 16739, 23931, 50217, 50521, 150651, 151563, 454689, 2342579, 7027737, 21083211, 44509001, 133527003, 400581009]

約数ペア:

[(1, 400581009), (3, 133527003), (9, 44509001), (19, 21083211), (57, 7027737), (171, 2342579), (881, 454689), (2643, 151563), (2659, 150651), (7929, 50521), (7977, 50217), (16739, 23931)]