20103391

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1993}}^1$

素因数の和:2142

約数の個数: 16

約数和(自身を含む): 25267968

約数和(自身を除く): 5164577

約数列:

[1, 7, 11, 77, 131, 917, 1441, 1993, 10087, 13951, 21923, 153461, 261083, 1827581, 2871913, 20103391]

約数ペア:

[(1, 20103391), (7, 2871913), (11, 1827581), (77, 261083), (131, 153461), (917, 21923), (1441, 13951), (1993, 10087)]