81869778

素因数分解:

$2^1\times 3^4\times {\mathrm{505369}}^1$

素因数の和:505383

約数の個数: 20

約数和(自身を含む): 183449310

約数和(自身を除く): 101579532

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 505369, 1010738, 1516107, 3032214, 4548321, 9096642, 13644963, 27289926, 40934889, 81869778]

約数ペア:

[(1, 81869778), (2, 40934889), (3, 27289926), (6, 13644963), (9, 9096642), (18, 4548321), (27, 3032214), (54, 1516107), (81, 1010738), (162, 505369)]