20646549

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{9931}}^1$

素因数の和:9958

約数の個数: 32

約数和(自身を含む): 38138880

約数和(自身を除く): 17492331

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 2079, 9931, 29793, 69517, 89379, 109241, 208551, 268137, 327723, 625653, 764687, 983169, 1876959, 2294061, 2949507, 6882183, 20646549]

約数ペア:

[(1, 20646549), (3, 6882183), (7, 2949507), (9, 2294061), (11, 1876959), (21, 983169), (27, 764687), (33, 625653), (63, 327723), (77, 268137), (99, 208551), (189, 109241), (231, 89379), (297, 69517), (693, 29793), (2079, 9931)]