21000638876

素因数分解:

$2^2\times 7^1\times {\mathrm{750022817}}^1$

素因数の和:750022828

約数の個数: 12

約数和(自身を含む): 42001277808

約数和(自身を除く): 21000638932

約数列:

[1, 2, 4, 7, 14, 28, 750022817, 1500045634, 3000091268, 5250159719, 10500319438, 21000638876]

約数ペア:

[(1, 21000638876), (2, 10500319438), (4, 5250159719), (7, 3000091268), (14, 1500045634), (28, 750022817)]