19742896

素因数分解:

$2^4\times {\mathrm{571}}^1\times {\mathrm{2161}}^1$

素因数の和:2740

約数の個数: 20

約数和(自身を含む): 38336584

約数和(自身を除く): 18593688

約数列:

[1, 2, 4, 8, 16, 571, 1142, 2161, 2284, 4322, 4568, 8644, 9136, 17288, 34576, 1233931, 2467862, 4935724, 9871448, 19742896]

約数ペア:

[(1, 19742896), (2, 9871448), (4, 4935724), (8, 2467862), (16, 1233931), (571, 34576), (1142, 17288), (2161, 9136), (2284, 8644), (4322, 4568)]