20573728

素因数分解:

$2^5\times 7^2\times {\mathrm{13121}}^1$

素因数の和:13145

約数の個数: 36

約数和(自身を含む): 47121102

約数和(自身を除く): 26547374

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 784, 1568, 13121, 26242, 52484, 91847, 104968, 183694, 209936, 367388, 419872, 642929, 734776, 1285858, 1469552, 2571716, 2939104, 5143432, 10286864, 20573728]

約数ペア:

[(1, 20573728), (2, 10286864), (4, 5143432), (7, 2939104), (8, 2571716), (14, 1469552), (16, 1285858), (28, 734776), (32, 642929), (49, 419872), (56, 367388), (98, 209936), (112, 183694), (196, 104968), (224, 91847), (392, 52484), (784, 26242), (1568, 13121)]