20178233919

素因数分解:

$3^4\times {\mathrm{1601}}^1\times {\mathrm{155599}}^1$

素因数の和:157212

約数の個数: 20

約数和(自身を含む): 30161815200

約数和(自身を除く): 9983581281

約数列:

[1, 3, 9, 27, 81, 1601, 4803, 14409, 43227, 129681, 155599, 466797, 1400391, 4201173, 12603519, 249113999, 747341997, 2242025991, 6726077973, 20178233919]

約数ペア:

[(1, 20178233919), (3, 6726077973), (9, 2242025991), (27, 747341997), (81, 249113999), (1601, 12603519), (4803, 4201173), (14409, 1400391), (43227, 466797), (129681, 155599)]