20724256

素因数分解:

$2^5\times 7^2\times {\mathrm{13217}}^1$

素因数の和:13241

約数の個数: 36

約数和(自身を含む): 47465838

約数和(自身を除く): 26741582

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 784, 1568, 13217, 26434, 52868, 92519, 105736, 185038, 211472, 370076, 422944, 647633, 740152, 1295266, 1480304, 2590532, 2960608, 5181064, 10362128, 20724256]

約数ペア:

[(1, 20724256), (2, 10362128), (4, 5181064), (7, 2960608), (8, 2590532), (14, 1480304), (16, 1295266), (28, 740152), (32, 647633), (49, 422944), (56, 370076), (98, 211472), (112, 185038), (196, 105736), (224, 92519), (392, 52868), (784, 26434), (1568, 13217)]