19490828

素因数分解:

$2^2\times 7^2\times {\mathrm{277}}^1\times {\mathrm{359}}^1$

素因数の和:654

約数の個数: 36

約数和(自身を含む): 39931920

約数和(自身を除く): 20441092

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 277, 359, 554, 718, 1108, 1436, 1939, 2513, 3878, 5026, 7756, 10052, 13573, 17591, 27146, 35182, 54292, 70364, 99443, 198886, 397772, 696101, 1392202, 2784404, 4872707, 9745414, 19490828]

約数ペア:

[(1, 19490828), (2, 9745414), (4, 4872707), (7, 2784404), (14, 1392202), (28, 696101), (49, 397772), (98, 198886), (196, 99443), (277, 70364), (359, 54292), (554, 35182), (718, 27146), (1108, 17591), (1436, 13573), (1939, 10052), (2513, 7756), (3878, 5026)]