12781813

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2659}}^1$

素因数の和:2712

約数の個数: 16

約数和(自身を含む): 15321600

約数和(自身を除く): 2539787

約数列:

[1, 11, 19, 23, 209, 253, 437, 2659, 4807, 29249, 50521, 61157, 555731, 672727, 1161983, 12781813]

約数ペア:

[(1, 12781813), (11, 1161983), (19, 672727), (23, 555731), (209, 61157), (253, 50521), (437, 29249), (2659, 4807)]