19953664

素因数分解:

$2^{11}\times {\mathrm{9743}}^1$

素因数の和:9765

約数の個数: 24

約数和(自身を含む): 39901680

約数和(自身を除く): 19948016

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 9743, 19486, 38972, 77944, 155888, 311776, 623552, 1247104, 2494208, 4988416, 9976832, 19953664]

約数ペア:

[(1, 19953664), (2, 9976832), (4, 4988416), (8, 2494208), (16, 1247104), (32, 623552), (64, 311776), (128, 155888), (256, 77944), (512, 38972), (1024, 19486), (2048, 9743)]