21081627

素因数分解:

$3^4\times 7^1\times {\mathrm{37181}}^1$

素因数の和:37200

約数の個数: 20

約数和(自身を含む): 35992176

約数和(自身を除く): 14910549

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 37181, 111543, 260267, 334629, 780801, 1003887, 2342403, 3011661, 7027209, 21081627]

約数ペア:

[(1, 21081627), (3, 7027209), (7, 3011661), (9, 2342403), (21, 1003887), (27, 780801), (63, 334629), (81, 260267), (189, 111543), (567, 37181)]