80908713

素因数分解:

$3^4\times {\mathrm{631}}^1\times {\mathrm{1583}}^1$

素因数の和:2226

約数の個数: 20

約数和(自身を含む): 121131648

約数和(自身を除く): 40222935

約数列:

[1, 3, 9, 27, 81, 631, 1583, 1893, 4749, 5679, 14247, 17037, 42741, 51111, 128223, 998873, 2996619, 8989857, 26969571, 80908713]

約数ペア:

[(1, 80908713), (3, 26969571), (9, 8989857), (27, 2996619), (81, 998873), (631, 128223), (1583, 51111), (1893, 42741), (4749, 17037), (5679, 14247)]