19520127

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^2$

素因数の和:200

約数の個数: 36

約数和(自身を含む): 32028984

約数和(自身を除く): 12508857

約数列:

[1, 3, 9, 11, 33, 37, 73, 99, 111, 219, 333, 407, 657, 803, 1221, 2409, 2701, 3663, 5329, 7227, 8103, 15987, 24309, 29711, 47961, 58619, 89133, 175857, 197173, 267399, 527571, 591519, 1774557, 2168903, 6506709, 19520127]

約数ペア:

[(1, 19520127), (3, 6506709), (9, 2168903), (11, 1774557), (33, 591519), (37, 527571), (73, 267399), (99, 197173), (111, 175857), (219, 89133), (333, 58619), (407, 47961), (657, 29711), (803, 24309), (1221, 15987), (2409, 8103), (2701, 7227), (3663, 5329)]