131173287

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{347}}^1\times {\mathrm{383}}^1$

素因数の和:787

約数の個数: 32

約数和(自身を含む): 205258752

約数和(自身を除く): 74085465

約数列:

[1, 3, 7, 21, 47, 141, 329, 347, 383, 987, 1041, 1149, 2429, 2681, 7287, 8043, 16309, 18001, 48927, 54003, 114163, 126007, 132901, 342489, 378021, 398703, 930307, 2790921, 6246347, 18739041, 43724429, 131173287]

約数ペア:

[(1, 131173287), (3, 43724429), (7, 18739041), (21, 6246347), (47, 2790921), (141, 930307), (329, 398703), (347, 378021), (383, 342489), (987, 132901), (1041, 126007), (1149, 114163), (2429, 54003), (2681, 48927), (7287, 18001), (8043, 16309)]