19980169

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{523}}^1$

素因数の和:708

約数の個数: 16

約数和(自身を含む): 22938624

約数和(自身を除く): 2958455

約数列:

[1, 11, 23, 151, 253, 523, 1661, 3473, 5753, 12029, 38203, 78973, 132319, 868703, 1816379, 19980169]

約数ペア:

[(1, 19980169), (11, 1816379), (23, 868703), (151, 132319), (253, 78973), (523, 38203), (1661, 12029), (3473, 5753)]