28135431

素因数分解:

$3^4\times {\mathrm{419}}^1\times {\mathrm{829}}^1$

素因数の和:1260

約数の個数: 20

約数和(自身を含む): 42180600

約数和(自身を除く): 14045169

約数列:

[1, 3, 9, 27, 81, 419, 829, 1257, 2487, 3771, 7461, 11313, 22383, 33939, 67149, 347351, 1042053, 3126159, 9378477, 28135431]

約数ペア:

[(1, 28135431), (3, 9378477), (9, 3126159), (27, 1042053), (81, 347351), (419, 67149), (829, 33939), (1257, 22383), (2487, 11313), (3771, 7461)]