20949685

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2141}}^1$

素因数の和:2268

約数の個数: 16

約数和(自身を含む): 26732160

約数和(自身を除く): 5782475

約数列:

[1, 5, 19, 95, 103, 515, 1957, 2141, 9785, 10705, 40679, 203395, 220523, 1102615, 4189937, 20949685]

約数ペア:

[(1, 20949685), (5, 4189937), (19, 1102615), (95, 220523), (103, 203395), (515, 40679), (1957, 10705), (2141, 9785)]