18850769

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{337}}^1$

素因数の和:536

約数の個数: 16

約数和(自身を含む): 22129536

約数和(自身を除く): 3278767

約数列:

[1, 7, 61, 131, 337, 427, 917, 2359, 7991, 20557, 44147, 55937, 143899, 309029, 2692967, 18850769]

約数ペア:

[(1, 18850769), (7, 2692967), (61, 309029), (131, 143899), (337, 55937), (427, 44147), (917, 20557), (2359, 7991)]