21756447

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2683}}^1$

素因数の和:2759

約数の個数: 24

約数和(自身を含む): 33915024

約数和(自身を除く): 12158577

約数列:

[1, 3, 9, 17, 51, 53, 153, 159, 477, 901, 2683, 2703, 8049, 8109, 24147, 45611, 136833, 142199, 410499, 426597, 1279791, 2417383, 7252149, 21756447]

約数ペア:

[(1, 21756447), (3, 7252149), (9, 2417383), (17, 1279791), (51, 426597), (53, 410499), (153, 142199), (159, 136833), (477, 45611), (901, 24147), (2683, 8109), (2703, 8049)]