27996921

素因数分解:

$3^4\times {\mathrm{421}}^1\times {\mathrm{821}}^1$

素因数の和:1254

約数の個数: 20

約数和(自身を含む): 41972964

約数和(自身を除く): 13976043

約数列:

[1, 3, 9, 27, 81, 421, 821, 1263, 2463, 3789, 7389, 11367, 22167, 34101, 66501, 345641, 1036923, 3110769, 9332307, 27996921]

約数ペア:

[(1, 27996921), (3, 9332307), (9, 3110769), (27, 1036923), (81, 345641), (421, 66501), (821, 34101), (1263, 22167), (2463, 11367), (3789, 7389)]