20649903

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{5939}}^1$

素因数の和:6022

約数の個数: 16

約数和(自身を含む): 29462400

約数和(自身を除く): 8812497

約数列:

[1, 3, 19, 57, 61, 183, 1159, 3477, 5939, 17817, 112841, 338523, 362279, 1086837, 6883301, 20649903]

約数ペア:

[(1, 20649903), (3, 6883301), (19, 1086837), (57, 362279), (61, 338523), (183, 112841), (1159, 17817), (3477, 5939)]