1621740988

素因数分解:

$2^2\times 7^1\times {\mathrm{57919321}}^1$

素因数の和:57919332

約数の個数: 12

約数和(自身を含む): 3243482032

約数和(自身を除く): 1621741044

約数列:

[1, 2, 4, 7, 14, 28, 57919321, 115838642, 231677284, 405435247, 810870494, 1621740988]

約数ペア:

[(1, 1621740988), (2, 810870494), (4, 405435247), (7, 231677284), (14, 115838642), (28, 57919321)]