18995103

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:216

約数の個数: 36

約数和(自身を含む): 29852680

約数和(自身を除く): 10857577

約数列:

[1, 3, 9, 17, 51, 67, 109, 153, 201, 289, 327, 603, 867, 981, 1139, 1853, 2601, 3417, 5559, 7303, 10251, 16677, 19363, 21909, 31501, 58089, 65727, 94503, 124151, 174267, 283509, 372453, 1117359, 2110567, 6331701, 18995103]

約数ペア:

[(1, 18995103), (3, 6331701), (9, 2110567), (17, 1117359), (51, 372453), (67, 283509), (109, 174267), (153, 124151), (201, 94503), (289, 65727), (327, 58089), (603, 31501), (867, 21909), (981, 19363), (1139, 16677), (1853, 10251), (2601, 7303), (3417, 5559)]