21709742

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{8527}}^1$

素因数の和:8615

約数の個数: 16

約数和(自身を含む): 34794240

約数和(自身を除く): 13084498

約数列:

[1, 2, 19, 38, 67, 134, 1273, 2546, 8527, 17054, 162013, 324026, 571309, 1142618, 10854871, 21709742]

約数ペア:

[(1, 21709742), (2, 10854871), (19, 1142618), (38, 571309), (67, 324026), (134, 162013), (1273, 17054), (2546, 8527)]