2158989

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{773}}^1$

素因数の和:809

約数の個数: 24

約数和(自身を含む): 3529440

約数和(自身を除く): 1370451

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 773, 931, 2319, 2793, 5411, 14687, 16233, 37877, 44061, 102809, 113631, 308427, 719663, 2158989]

約数ペア:

[(1, 2158989), (3, 719663), (7, 308427), (19, 113631), (21, 102809), (49, 44061), (57, 37877), (133, 16233), (147, 14687), (399, 5411), (773, 2793), (931, 2319)]