19995508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{563}}^1\times {\mathrm{683}}^1$

素因数の和:1263

約数の個数: 24

約数和(自身を含む): 37806048

約数和(自身を除く): 17810540

約数列:

[1, 2, 4, 13, 26, 52, 563, 683, 1126, 1366, 2252, 2732, 7319, 8879, 14638, 17758, 29276, 35516, 384529, 769058, 1538116, 4998877, 9997754, 19995508]

約数ペア:

[(1, 19995508), (2, 9997754), (4, 4998877), (13, 1538116), (26, 769058), (52, 384529), (563, 35516), (683, 29276), (1126, 17758), (1366, 14638), (2252, 8879), (2732, 7319)]