12720147

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 19284480

約数和(自身を除く): 6564333

約数列:

[1, 3, 11, 33, 61, 71, 89, 183, 213, 267, 671, 781, 979, 2013, 2343, 2937, 4331, 5429, 6319, 12993, 16287, 18957, 47641, 59719, 69509, 142923, 179157, 208527, 385459, 1156377, 4240049, 12720147]

約数ペア:

[(1, 12720147), (3, 4240049), (11, 1156377), (33, 385459), (61, 208527), (71, 179157), (89, 142923), (183, 69509), (213, 59719), (267, 47641), (671, 18957), (781, 16287), (979, 12993), (2013, 6319), (2343, 5429), (2937, 4331)]