19728733

素因数分解:

${\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1$

素因数の和:396

約数の個数: 16

約数和(自身を含む): 21450240

約数和(自身を除く): 1721507

約数列:

[1, 23, 37, 97, 239, 851, 2231, 3589, 5497, 8843, 23183, 82547, 203389, 533209, 857771, 19728733]

約数ペア:

[(1, 19728733), (23, 857771), (37, 533209), (97, 203389), (239, 82547), (851, 23183), (2231, 8843), (3589, 5497)]