55917057

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{140143}}^1$

素因数の和:140172

約数の個数: 16

約数和(自身を含む): 89692160

約数和(自身を除く): 33775103

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 140143, 420429, 981001, 2662717, 2943003, 7988151, 18639019, 55917057]

約数ペア:

[(1, 55917057), (3, 18639019), (7, 7988151), (19, 2943003), (21, 2662717), (57, 981001), (133, 420429), (399, 140143)]