19556919

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:216

約数の個数: 36

約数和(自身を含む): 30714736

約数和(自身を除く): 11157817

約数列:

[1, 3, 9, 17, 51, 73, 103, 153, 219, 289, 309, 657, 867, 927, 1241, 1751, 2601, 3723, 5253, 7519, 11169, 15759, 21097, 22557, 29767, 63291, 67671, 89301, 127823, 189873, 267903, 383469, 1150407, 2172991, 6518973, 19556919]

約数ペア:

[(1, 19556919), (3, 6518973), (9, 2172991), (17, 1150407), (51, 383469), (73, 267903), (103, 189873), (153, 127823), (219, 89301), (289, 67671), (309, 63291), (657, 29767), (867, 22557), (927, 21097), (1241, 15759), (1751, 11169), (2601, 7519), (3723, 5253)]