1668219

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:179

約数の個数: 32

約数和(自身を含む): 2772480

約数和(自身を除く): 1104261

約数列:

[1, 3, 7, 19, 21, 37, 57, 111, 113, 133, 259, 339, 399, 703, 777, 791, 2109, 2147, 2373, 4181, 4921, 6441, 12543, 14763, 15029, 29267, 45087, 79439, 87801, 238317, 556073, 1668219]

約数ペア:

[(1, 1668219), (3, 556073), (7, 238317), (19, 87801), (21, 79439), (37, 45087), (57, 29267), (111, 15029), (113, 14763), (133, 12543), (259, 6441), (339, 4921), (399, 4181), (703, 2373), (777, 2147), (791, 2109)]