2978991

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{5807}}^1$

素因数の和:5835

約数の個数: 16

約数和(自身を含む): 4646400

約数和(自身を除く): 1667409

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 5807, 17421, 52263, 110333, 156789, 330999, 992997, 2978991]

約数ペア:

[(1, 2978991), (3, 992997), (9, 330999), (19, 156789), (27, 110333), (57, 52263), (171, 17421), (513, 5807)]