19989519

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{5881}}^1$

素因数の和:5998

約数の個数: 16

約数和(自身を含む): 29362944

約数和(自身を除く): 9373425

約数列:

[1, 3, 11, 33, 103, 309, 1133, 3399, 5881, 17643, 64691, 194073, 605743, 1817229, 6663173, 19989519]

約数ペア:

[(1, 19989519), (3, 6663173), (11, 1817229), (33, 605743), (103, 194073), (309, 64691), (1133, 17643), (3399, 5881)]