278457081

素因数分解:

$3^1\times 7^1\times {\mathrm{1291}}^1\times {\mathrm{10271}}^1$

素因数の和:11572

約数の個数: 16

約数和(自身を含む): 424685568

約数和(自身を除く): 146228487

約数列:

[1, 3, 7, 21, 1291, 3873, 9037, 10271, 27111, 30813, 71897, 215691, 13259861, 39779583, 92819027, 278457081]

約数ペア:

[(1, 278457081), (3, 92819027), (7, 39779583), (21, 13259861), (1291, 215691), (3873, 71897), (9037, 30813), (10271, 27111)]