19664288

素因数分解:

$2^5\times 7^2\times {\mathrm{12541}}^1$

素因数の和:12565

約数の個数: 36

約数和(自身を含む): 45038322

約数和(自身を除く): 25374034

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 784, 1568, 12541, 25082, 50164, 87787, 100328, 175574, 200656, 351148, 401312, 614509, 702296, 1229018, 1404592, 2458036, 2809184, 4916072, 9832144, 19664288]

約数ペア:

[(1, 19664288), (2, 9832144), (4, 4916072), (7, 2809184), (8, 2458036), (14, 1404592), (16, 1229018), (28, 702296), (32, 614509), (49, 401312), (56, 351148), (98, 200656), (112, 175574), (196, 100328), (224, 87787), (392, 50164), (784, 25082), (1568, 12541)]