51721983

素因数分解:

$3^4\times {\mathrm{173}}^1\times {\mathrm{3691}}^1$

素因数の和:3876

約数の個数: 20

約数和(自身を含む): 77731368

約数和(自身を除く): 26009385

約数列:

[1, 3, 9, 27, 81, 173, 519, 1557, 3691, 4671, 11073, 14013, 33219, 99657, 298971, 638543, 1915629, 5746887, 17240661, 51721983]

約数ペア:

[(1, 51721983), (3, 17240661), (9, 5746887), (27, 1915629), (81, 638543), (173, 298971), (519, 99657), (1557, 33219), (3691, 14013), (4671, 11073)]