21585914

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1559}}^1$

素因数の和:1634

約数の個数: 32

約数和(自身を含む): 39536640

約数和(自身を除く): 17950726

約数列:

[1, 2, 7, 14, 23, 43, 46, 86, 161, 301, 322, 602, 989, 1559, 1978, 3118, 6923, 10913, 13846, 21826, 35857, 67037, 71714, 134074, 250999, 469259, 501998, 938518, 1541851, 3083702, 10792957, 21585914]

約数ペア:

[(1, 21585914), (2, 10792957), (7, 3083702), (14, 1541851), (23, 938518), (43, 501998), (46, 469259), (86, 250999), (161, 134074), (301, 71714), (322, 67037), (602, 35857), (989, 21826), (1559, 13846), (1978, 10913), (3118, 6923)]