20661753

素因数分解:

$3^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{4663}}^1$

素因数の和:4884

約数の個数: 16

約数和(自身を含む): 31640576

約数和(自身を除く): 10978823

約数列:

[1, 3, 7, 21, 211, 633, 1477, 4431, 4663, 13989, 32641, 97923, 983893, 2951679, 6887251, 20661753]

約数ペア:

[(1, 20661753), (3, 6887251), (7, 2951679), (21, 983893), (211, 97923), (633, 32641), (1477, 13989), (4431, 4663)]