20977509

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{16931}}^1$

素因数の和:17000

約数の個数: 16

約数和(自身を含む): 32509440

約数和(自身を除く): 11531931

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 16931, 50793, 118517, 355551, 998929, 2996787, 6992503, 20977509]

約数ペア:

[(1, 20977509), (3, 6992503), (7, 2996787), (21, 998929), (59, 355551), (177, 118517), (413, 50793), (1239, 16931)]