21764708

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{18077}}^1$

素因数の和:18131

約数の個数: 24

約数和(自身を含む): 44544192

約数和(自身を除く): 22779484

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 18077, 36154, 72308, 126539, 253078, 506156, 777311, 1554622, 3109244, 5441177, 10882354, 21764708]

約数ペア:

[(1, 21764708), (2, 10882354), (4, 5441177), (7, 3109244), (14, 1554622), (28, 777311), (43, 506156), (86, 253078), (172, 126539), (301, 72308), (602, 36154), (1204, 18077)]