19898889212

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{617}}^1\times {\mathrm{260089}}^1$

素因数の和:260741

約数の個数: 24

約数和(自身を含む): 36004778880

約数和(自身を除く): 16105889668

約数列:

[1, 2, 4, 31, 62, 124, 617, 1234, 2468, 19127, 38254, 76508, 260089, 520178, 1040356, 8062759, 16125518, 32251036, 160474913, 320949826, 641899652, 4974722303, 9949444606, 19898889212]

約数ペア:

[(1, 19898889212), (2, 9949444606), (4, 4974722303), (31, 641899652), (62, 320949826), (124, 160474913), (617, 32251036), (1234, 16125518), (2468, 8062759), (19127, 1040356), (38254, 520178), (76508, 260089)]