20966043

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{199}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 33408000

約数和(自身を除く): 12441957

約数列:

[1, 3, 7, 21, 29, 87, 173, 199, 203, 519, 597, 609, 1211, 1393, 3633, 4179, 5017, 5771, 15051, 17313, 34427, 35119, 40397, 103281, 105357, 121191, 240989, 722967, 998383, 2995149, 6988681, 20966043]

約数ペア:

[(1, 20966043), (3, 6988681), (7, 2995149), (21, 998383), (29, 722967), (87, 240989), (173, 121191), (199, 105357), (203, 103281), (519, 40397), (597, 35119), (609, 34427), (1211, 17313), (1393, 15051), (3633, 5771), (4179, 5017)]