28558257

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1433}}^1$

素因数の和:1529

約数の個数: 32

約数和(自身を含む): 47539968

約数和(自身を除く): 18981711

約数列:

[1, 3, 7, 13, 21, 39, 73, 91, 219, 273, 511, 949, 1433, 1533, 2847, 4299, 6643, 10031, 18629, 19929, 30093, 55887, 104609, 130403, 313827, 391209, 732263, 1359917, 2196789, 4079751, 9519419, 28558257]

約数ペア:

[(1, 28558257), (3, 9519419), (7, 4079751), (13, 2196789), (21, 1359917), (39, 732263), (73, 391209), (91, 313827), (219, 130403), (273, 104609), (511, 55887), (949, 30093), (1433, 19929), (1533, 18629), (2847, 10031), (4299, 6643)]