1998964317

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1340687}}^1$

素因数の和:1340768

約数の個数: 16

約数和(自身を含む): 3088945152

約数和(自身を除く): 1089980835

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 1340687, 4022061, 9384809, 28154427, 95188777, 285566331, 666321439, 1998964317]

約数ペア:

[(1, 1998964317), (3, 666321439), (7, 285566331), (21, 95188777), (71, 28154427), (213, 9384809), (497, 4022061), (1491, 1340687)]