81998217

素因数分解:

$3^3\times 7^2\times {\mathrm{61979}}^1$

素因数の和:62002

約数の個数: 24

約数和(自身を含む): 141314400

約数和(自身を除く): 59316183

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 61979, 185937, 433853, 557811, 1301559, 1673433, 3036971, 3904677, 9110913, 11714031, 27332739, 81998217]

約数ペア:

[(1, 81998217), (3, 27332739), (7, 11714031), (9, 9110913), (21, 3904677), (27, 3036971), (49, 1673433), (63, 1301559), (147, 557811), (189, 433853), (441, 185937), (1323, 61979)]