19912277

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{36943}}^1$

素因数の和:36968

約数の個数: 12

約数和(自身を含む): 25269696

約数和(自身を除く): 5357419

約数列:

[1, 7, 11, 49, 77, 539, 36943, 258601, 406373, 1810207, 2844611, 19912277]

約数ペア:

[(1, 19912277), (7, 2844611), (11, 1810207), (49, 406373), (77, 258601), (539, 36943)]