199430861

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{28807}}^1$

素因数の和:28880

約数の個数: 16

約数和(自身を含む): 243369984

約数和(自身を除く): 43939123

約数列:

[1, 7, 23, 43, 161, 301, 989, 6923, 28807, 201649, 662561, 1238701, 4637927, 8670907, 28490123, 199430861]

約数ペア:

[(1, 199430861), (7, 28490123), (23, 8670907), (43, 4637927), (161, 1238701), (301, 662561), (989, 201649), (6923, 28807)]