19026987

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 30336000

約数和(自身を除く): 11309013

約数列:

[1, 3, 7, 21, 29, 87, 157, 199, 203, 471, 597, 609, 1099, 1393, 3297, 4179, 4553, 5771, 13659, 17313, 31243, 31871, 40397, 93729, 95613, 121191, 218701, 656103, 906047, 2718141, 6342329, 19026987]

約数ペア:

[(1, 19026987), (3, 6342329), (7, 2718141), (21, 906047), (29, 656103), (87, 218701), (157, 121191), (199, 95613), (203, 93729), (471, 40397), (597, 31871), (609, 31243), (1099, 17313), (1393, 13659), (3297, 5771), (4179, 4553)]