19720736

素因数分解:

$2^5\times 7^2\times {\mathrm{12577}}^1$

素因数の和:12601

約数の個数: 36

約数和(自身を含む): 45167598

約数和(自身を除く): 25446862

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 784, 1568, 12577, 25154, 50308, 88039, 100616, 176078, 201232, 352156, 402464, 616273, 704312, 1232546, 1408624, 2465092, 2817248, 4930184, 9860368, 19720736]

約数ペア:

[(1, 19720736), (2, 9860368), (4, 4930184), (7, 2817248), (8, 2465092), (14, 1408624), (16, 1232546), (28, 704312), (32, 616273), (49, 402464), (56, 352156), (98, 201232), (112, 176078), (196, 100616), (224, 88039), (392, 50308), (784, 25154), (1568, 12577)]