21329373

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{607}}^1$

素因数の和:693

約数の個数: 32

約数和(自身を含む): 33094656

約数和(自身を除く): 11765283

約数列:

[1, 3, 13, 17, 39, 51, 53, 159, 221, 607, 663, 689, 901, 1821, 2067, 2703, 7891, 10319, 11713, 23673, 30957, 32171, 35139, 96513, 134147, 402441, 418223, 546907, 1254669, 1640721, 7109791, 21329373]

約数ペア:

[(1, 21329373), (3, 7109791), (13, 1640721), (17, 1254669), (39, 546907), (51, 418223), (53, 402441), (159, 134147), (221, 96513), (607, 35139), (663, 32171), (689, 30957), (901, 23673), (1821, 11713), (2067, 10319), (2703, 7891)]