20451328

素因数分解:

$2^{12}\times {\mathrm{4993}}^1$

素因数の和:5017

約数の個数: 26

約数和(自身を含む): 40905854

約数和(自身を除く): 20454526

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 4993, 9986, 19972, 39944, 79888, 159776, 319552, 639104, 1278208, 2556416, 5112832, 10225664, 20451328]

約数ペア:

[(1, 20451328), (2, 10225664), (4, 5112832), (8, 2556416), (16, 1278208), (32, 639104), (64, 319552), (128, 159776), (256, 79888), (512, 39944), (1024, 19972), (2048, 9986), (4096, 4993)]