21545613

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2657}}^1$

素因数の和:2733

約数の個数: 24

約数和(自身を含む): 33586488

約数和(自身を除く): 12040875

約数列:

[1, 3, 9, 17, 51, 53, 153, 159, 477, 901, 2657, 2703, 7971, 8109, 23913, 45169, 135507, 140821, 406521, 422463, 1267389, 2393957, 7181871, 21545613]

約数ペア:

[(1, 21545613), (3, 7181871), (9, 2393957), (17, 1267389), (51, 422463), (53, 406521), (153, 140821), (159, 135507), (477, 45169), (901, 23913), (2657, 8109), (2703, 7971)]