18450531

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:153

約数の個数: 64

約数和(自身を含む): 32394240

約数和(自身を除く): 13943709

約数列:

[1, 3, 9, 11, 23, 27, 33, 37, 69, 73, 99, 111, 207, 219, 253, 297, 333, 407, 621, 657, 759, 803, 851, 999, 1221, 1679, 1971, 2277, 2409, 2553, 2701, 3663, 5037, 6831, 7227, 7659, 8103, 9361, 10989, 15111, 18469, 21681, 22977, 24309, 28083, 29711, 45333, 55407, 62123, 72927, 84249, 89133, 166221, 186369, 252747, 267399, 498663, 559107, 683353, 802197, 1677321, 2050059, 6150177, 18450531]

約数ペア:

[(1, 18450531), (3, 6150177), (9, 2050059), (11, 1677321), (23, 802197), (27, 683353), (33, 559107), (37, 498663), (69, 267399), (73, 252747), (99, 186369), (111, 166221), (207, 89133), (219, 84249), (253, 72927), (297, 62123), (333, 55407), (407, 45333), (621, 29711), (657, 28083), (759, 24309), (803, 22977), (851, 21681), (999, 18469), (1221, 15111), (1679, 10989), (1971, 9361), (2277, 8103), (2409, 7659), (2553, 7227), (2701, 6831), (3663, 5037)]