12787328

素因数分解:

$2^7\times {\mathrm{99901}}^1$

素因数の和:99915

約数の個数: 16

約数和(自身を含む): 25475010

約数和(自身を除く): 12687682

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 99901, 199802, 399604, 799208, 1598416, 3196832, 6393664, 12787328]

約数ペア:

[(1, 12787328), (2, 6393664), (4, 3196832), (8, 1598416), (16, 799208), (32, 399604), (64, 199802), (128, 99901)]