20658799

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{211}}^1$

素因数の和:486

約数の個数: 16

約数和(自身を含む): 24178176

約数和(自身を除く): 3519377

約数列:

[1, 7, 71, 197, 211, 497, 1379, 1477, 13987, 14981, 41567, 97909, 104867, 290969, 2951257, 20658799]

約数ペア:

[(1, 20658799), (7, 2951257), (71, 290969), (197, 104867), (211, 97909), (497, 41567), (1379, 14981), (1477, 13987)]