850890243

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{304651}}^1$

素因数の和:304687

約数の個数: 24

約数和(自身を含む): 1389213120

約数和(自身を除く): 538322877

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 304651, 913953, 2132557, 5788369, 6397671, 14927899, 17365107, 40518583, 44783697, 121555749, 283630081, 850890243]

約数ペア:

[(1, 850890243), (3, 283630081), (7, 121555749), (19, 44783697), (21, 40518583), (49, 17365107), (57, 14927899), (133, 6397671), (147, 5788369), (399, 2132557), (931, 913953), (2793, 304651)]