19499984

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4049}}^1$

素因数の和:4107

約数の個数: 40

約数和(自身を含む): 44193600

約数和(自身を除く): 24693616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 1204, 2408, 4049, 4816, 8098, 16196, 28343, 32392, 56686, 64784, 113372, 174107, 226744, 348214, 453488, 696428, 1218749, 1392856, 2437498, 2785712, 4874996, 9749992, 19499984]

約数ペア:

[(1, 19499984), (2, 9749992), (4, 4874996), (7, 2785712), (8, 2437498), (14, 1392856), (16, 1218749), (28, 696428), (43, 453488), (56, 348214), (86, 226744), (112, 174107), (172, 113372), (301, 64784), (344, 56686), (602, 32392), (688, 28343), (1204, 16196), (2408, 8098), (4049, 4816)]