21434774

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{8419}}^1$

素因数の和:8507

約数の個数: 16

約数和(自身を含む): 34353600

約数和(自身を除く): 12918826

約数列:

[1, 2, 19, 38, 67, 134, 1273, 2546, 8419, 16838, 159961, 319922, 564073, 1128146, 10717387, 21434774]

約数ペア:

[(1, 21434774), (2, 10717387), (19, 1128146), (38, 564073), (67, 319922), (134, 159961), (1273, 16838), (2546, 8419)]