20553699

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{1163}}^1$

素因数の和:1346

約数の個数: 16

約数和(自身を含む): 28271232

約数和(自身を除く): 7717533

約数列:

[1, 3, 43, 129, 137, 411, 1163, 3489, 5891, 17673, 50009, 150027, 159331, 477993, 6851233, 20553699]

約数ペア:

[(1, 20553699), (3, 6851233), (43, 477993), (129, 159331), (137, 150027), (411, 50009), (1163, 17673), (3489, 5891)]