19998294039

素因数分解:

$3^4\times {\mathrm{4451}}^1\times {\mathrm{55469}}^1$

素因数の和:59932

約数の個数: 20

約数和(自身を含む): 29881245240

約数和(自身を除く): 9882951201

約数列:

[1, 3, 9, 27, 81, 4451, 13353, 40059, 55469, 120177, 166407, 360531, 499221, 1497663, 4492989, 246892519, 740677557, 2222032671, 6666098013, 19998294039]

約数ペア:

[(1, 19998294039), (3, 6666098013), (9, 2222032671), (27, 740677557), (81, 246892519), (4451, 4492989), (13353, 1497663), (40059, 499221), (55469, 360531), (120177, 166407)]