978562018

素因数分解:

$2^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{142357}}^1$

素因数の和:142857

約数の個数: 16

約数和(自身を含む): 1680963264

約数和(自身を除く): 702401246

約数列:

[1, 2, 7, 14, 491, 982, 3437, 6874, 142357, 284714, 996499, 1992998, 69897287, 139794574, 489281009, 978562018]

約数ペア:

[(1, 978562018), (2, 489281009), (7, 139794574), (14, 69897287), (491, 1992998), (982, 996499), (3437, 284714), (6874, 142357)]