2951991

素因数分解:

$3^3\times 7^1\times {\mathrm{15619}}^1$

素因数の和:15635

約数の個数: 16

約数和(自身を含む): 4998400

約数和(自身を除く): 2046409

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 15619, 46857, 109333, 140571, 327999, 421713, 983997, 2951991]

約数ペア:

[(1, 2951991), (3, 983997), (7, 421713), (9, 327999), (21, 140571), (27, 109333), (63, 46857), (189, 15619)]