42389811

素因数分解:

$3^4\times {\mathrm{419}}^1\times {\mathrm{1249}}^1$

素因数の和:1680

約数の個数: 20

約数和(自身を含む): 63525000

約数和(自身を除く): 21135189

約数列:

[1, 3, 9, 27, 81, 419, 1249, 1257, 3747, 3771, 11241, 11313, 33723, 33939, 101169, 523331, 1569993, 4709979, 14129937, 42389811]

約数ペア:

[(1, 42389811), (3, 14129937), (9, 4709979), (27, 1569993), (81, 523331), (419, 101169), (1249, 33939), (1257, 33723), (3747, 11313), (3771, 11241)]