19815068

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{54437}}^1$

素因数の和:54461

約数の個数: 24

約数和(自身を含む): 42679392

約数和(自身を除く): 22864324

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 54437, 108874, 217748, 381059, 707681, 762118, 1415362, 1524236, 2830724, 4953767, 9907534, 19815068]

約数ペア:

[(1, 19815068), (2, 9907534), (4, 4953767), (7, 2830724), (13, 1524236), (14, 1415362), (26, 762118), (28, 707681), (52, 381059), (91, 217748), (182, 108874), (364, 54437)]