81639333

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{53047}}^1$

素因数の和:53078

約数の個数: 20

約数和(自身を含む): 128376160

約数和(自身を除く): 46736827

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 53047, 159141, 477423, 1007893, 1432269, 3023679, 4296807, 9071037, 27213111, 81639333]

約数ペア:

[(1, 81639333), (3, 27213111), (9, 9071037), (19, 4296807), (27, 3023679), (57, 1432269), (81, 1007893), (171, 477423), (513, 159141), (1539, 53047)]