19731328

素因数分解:

$2^7\times {\mathrm{139}}^1\times {\mathrm{1109}}^1$

素因数の和:1262

約数の個数: 32

約数和(自身を含む): 39627000

約数和(自身を除く): 19895672

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 139, 278, 556, 1109, 1112, 2218, 2224, 4436, 4448, 8872, 8896, 17744, 17792, 35488, 70976, 141952, 154151, 308302, 616604, 1233208, 2466416, 4932832, 9865664, 19731328]

約数ペア:

[(1, 19731328), (2, 9865664), (4, 4932832), (8, 2466416), (16, 1233208), (32, 616604), (64, 308302), (128, 154151), (139, 141952), (278, 70976), (556, 35488), (1109, 17792), (1112, 17744), (2218, 8896), (2224, 8872), (4436, 4448)]