1978139009

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{288653}}^1$

素因数の和:288760

約数の個数: 16

約数和(自身を含む): 2493970560

約数和(自身を除く): 515831551

約数列:

[1, 7, 11, 77, 89, 623, 979, 6853, 288653, 2020571, 3175183, 22226281, 25690117, 179830819, 282591287, 1978139009]

約数ペア:

[(1, 1978139009), (7, 282591287), (11, 179830819), (77, 25690117), (89, 22226281), (623, 3175183), (979, 2020571), (6853, 288653)]