18241178

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{6761}}^1$

素因数の和:6853

約数の個数: 16

約数和(自身を含む): 29211840

約数和(自身を除く): 10970662

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 6761, 13522, 128459, 256918, 480031, 960062, 9120589, 18241178]

約数ペア:

[(1, 18241178), (2, 9120589), (19, 960062), (38, 480031), (71, 256918), (142, 128459), (1349, 13522), (2698, 6761)]