19884431

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{3181}}^1$

素因数の和:3254

約数の個数: 16

約数和(自身を含む): 24437760

約数和(自身を除く): 4553329

約数列:

[1, 7, 19, 47, 133, 329, 893, 3181, 6251, 22267, 60439, 149507, 423073, 1046549, 2840633, 19884431]

約数ペア:

[(1, 19884431), (7, 2840633), (19, 1046549), (47, 423073), (133, 149507), (329, 60439), (893, 22267), (3181, 6251)]