79780221

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{51839}}^1$

素因数の和:51870

約数の個数: 20

約数和(自身を含む): 125452800

約数和(自身を除く): 45672579

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 51839, 155517, 466551, 984941, 1399653, 2954823, 4198959, 8864469, 26593407, 79780221]

約数ペア:

[(1, 79780221), (3, 26593407), (9, 8864469), (19, 4198959), (27, 2954823), (57, 1399653), (81, 984941), (171, 466551), (513, 155517), (1539, 51839)]