20624751

素因数分解:

$3^2\times 7^1\times {\mathrm{443}}^1\times {\mathrm{739}}^1$

素因数の和:1195

約数の個数: 24

約数和(自身を含む): 34170240

約数和(自身を除く): 13545489

約数列:

[1, 3, 7, 9, 21, 63, 443, 739, 1329, 2217, 3101, 3987, 5173, 6651, 9303, 15519, 27909, 46557, 327377, 982131, 2291639, 2946393, 6874917, 20624751]

約数ペア:

[(1, 20624751), (3, 6874917), (7, 2946393), (9, 2291639), (21, 982131), (63, 327377), (443, 46557), (739, 27909), (1329, 15519), (2217, 9303), (3101, 6651), (3987, 5173)]